
02 — Stone Catalog
01 / 08Gray Bayburt Olive Stone
From our quarry
Technical data on the following page
Available Finishes
- Honed Popular
- Polished Popular
- Bush-Hammered
- Sawn
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Natural stone — quarried, processed, delivered
We quarry, process and sell natural stone for builders across Türkiye — from Bayburt Tuff and Bayburt Olive to a full catalog we cut and finish for projects.
Index
01 — The Quarry
Taşkesen Tuff Quarry

For three generations, Koral Taş has quarried, processed and sold natural stone from Bayburt. We extract Bayburt Tuff and Bayburt Olive at our quarries, cut and finish most other stones, and supply trade projects across Türkiye.

02 — Stone Catalog
01 / 08From our quarry
Technical data on the following page
Available Finishes
Technical data
01 / 08About this stone
Bringing nature's unique color palette directly to architectural projects, Bayburt Olive is a premium biosparitic limestone featuring elegant transitions of olive green and earthy grey tones. It is not merely an aesthetic cladding material, but a structural armor boasting an exceptionally high compressive strength of 142.67 MPa. Thanks…
| Origin | Bayburt, Türkiye |
|---|---|
| Type | Bayburt Olive |
| Source | From our quarry |
| Petrographic Description | Bayburt Olive (Biosparitic Limestone) · EN 12407 |
| Hardness (Mohs) | 6 · TS 6809 |
| Flexural Strength (Average) | 21.64 MPa · TS EN 12372 |
| Compressive Strength (Average) | 142.67 MPa · EN 13364 |
| Water Absorption (At Atmospheric Pressure) | 0.52 % · EN 13755 |
Seen in projects



02 — Stone Catalog
02 / 08From our quarry
Technical data on the following page
Available Finishes
Technical data
02 / 08About this stone
Standing out with its natural insulation properties and breathable structure, Bayburt Tuff offers a perfect blend of aesthetics and functionality for architectural projects. With a density of 2370 Kg/m³ and a compressive strength of 450 Kgf/cm², it delivers reliable and long-lasting performance in both interior and exterior applications.…
| Origin | Bayburt, Türkiye |
|---|---|
| Type | Bayburt Tuff |
| Source | From our quarry |
| Hardness (Mohs) | 4.4 |
| Water Absorption (By Weight) | 12.2 % |
| Water Absorption (By Volume) | 20.6 % |
| Density | 2370 Kg/m³ |
| Flexural Strength | 125 Kgf/cm² |
Seen in projects



02 — Stone Catalog
03 / 08Technical data on the following page
Available Finishes
Technical data
03 / 08About this stone
Afyon Gray Marble (Afyon Gri Marble) adds a timeless aesthetic to your projects with its elegant appearance and distinctive veining patterns. Featuring a rich spectrum of tones from light to dark gray, its most striking characteristic is the bold, dramatic white veining that creates intense contrast and a…
| Origin | Afyonkarahisar, Türkiye |
|---|---|
| Type | Afyon Gray Marble |
| Hardness (Mohs) | 4 |
| Unit Volume Weight | 2.71 gr/cm³ |
| Density | 2.73 gr/cm³ (2710 kg/m³) |
| Water Absorption (Atmospheric Pressure) | By weight: 0.1% - By volume: 0.2% |
| Water Absorption (Boiling Water) | By weight: 0.1% - By volume: 0.2% |
| Porosity | 0.2% |

02 — Stone Catalog
04 / 08Technical data on the following page
Available Finishes
Technical data
04 / 08About this stone
Amasya Beige Marble is a captivating natural stone known for its welcoming warm beige base color, beautifully accented by soft, subtle veins and delicate speckles that grace its surface. Quarried in the renowned Amasya district of Turkey, this marble exhibits a unique blend of characteristics, with varying veins…
| Origin | Amasya, Türkiye |
|---|---|
| Type | Amasya Beige Marble |
| Water Absorption (By weight) | 0.11 - 0.19 % |
| Density | 2695 kg/m³ |
| Flexural Strength | 14.13 MPa |
| Compressive Strength | 93.37 MPa |

02 — Stone Catalog
05 / 08Technical data on the following page
Available Finishes
Technical data
05 / 08About this stone
Quarried from the prestigious İkisu region in Gümüşhane, Rosso Nova is the dynamic and contemporary selection of our boutique natural stone collection. Much like its sister stone Rosso Perla, it serves as a formidable and luxurious alternative to Elazığ Vişne marble. It is distinguished by its deep crimson…
| Origin | Gümüşhane, Türkiye |
|---|---|
| Type | Gümüşhane Rosso Nova |
| Hardness (Mohs) | 5.5 - 6 |
| Density | 2.72 - 3.22 g/cm³ |
| Polishability | Medium |
| Rock Classification | Olivine Basalt / Boutique Marble |
| SiO2 | 42.83 |
| Al2O3 | 16.69 |

02 — Stone Catalog
06 / 08Technical data on the following page
Available Finishes
Technical data
06 / 08About this stone
Gümüşhane Rosso Perla is a captivating boutique natural stone known for its striking red, burgundy tones, and exquisite white calcite veins that grace its surface. Quarried in the İkisu region of Gümüşhane, Turkey, this premium stone is increasingly showcased as a powerful alternative to Elazig Rosso Levanto marble.…
| Origin | Gümüşhane, Türkiye |
|---|---|
| Type | Gümüşhane Rosso Perla |
| Hardness (Mohs) | 5.5 - 6 |
| Density | 2.72 - 3.22 g/cm³ |
| Polishability | Medium |
| Rock Classification | Olivine Basalt |
| SiO2 | 42.83 |
| Al2O3 | 16.69 |

02 — Stone Catalog
07 / 08Technical data on the following page
Available Finishes
Technical data
07 / 08About this stone
Kayseri Basalt is a distinctive natural stone renowned for its striking dark gray to black coloration and unique porous texture. Sourced from the rich volcanic quarries of Kayseri, Turkey, this basalt exhibits a fine-grained structure characterized by visible pores and vesicles formed during the rapid cooling of volcanic…
| Origin | Kayseri, Türkiye |
|---|---|
| Type | Kayseri Basalt |
| Water Absorption | 0.995 % |
| Density | 2770 kg/m³ |
| Flexural Strength | 96.5 kg/cm² |
| Compressive Strength | 760 kg/cm² |

02 — Stone Catalog
08 / 08Technical data on the following page
Available Finishes
Technical data
08 / 08About this stone
Uludağ Black Marble is an extraordinary natural stone that brings the noble and dramatic power of nature directly into luxury architectural spaces. Quarried from prestigious reserves, this exclusive marble stands out with its striking, intense white veining that resembles cracked ice or bold lightning strikes, set against a…
| Origin | Bursa, Türkiye |
|---|---|
| Type | Uludag Black Marble |

03 — Architecture
Ivory Bayburt Tuff Stone · Bayburt, Türkiye
Project story
Completed in 2025 in the Demirözü district of Bayburt, this exclusive villa project represents the perfect harmony of natural stone elegance and modern architecture. The entire exterior facade is clad in premium Ivory Bayburt Tuff Stone, meticulously crafted by our workshop. The pure, ivory-like texture of the stone gives the structure a luxurious and timeless identity. Thanks to the breathable natural structure and superior thermal insulation of White Bayburt Stone, the villa remains cool in the summer and warm in the winter, ensuring maximum energy efficiency. Delicately shaped by our master craftsmen when first extracted, this unique material hardens and solidifies as it interacts with the air over time. It has transformed into a lifelong shield that defies the harsh climate of Demirözü. This project proudly stands in our portfolio as an enduring masterpiece meant to be passed down through generations.
Detail photographs on the following page
Project details



03 — Architecture
Gray Bayburt Olive Stone + Ivory Bayburt Tuff Stone
Project story
Realized in the Alucra district of Giresun, this modern stone house project brings two distinct textures of natural stone to the exterior facade with a flawless architectural contrast. The Bayburt Olive stone, applied to the main exterior walls, features a split-face finish. This textured surface creates beautiful shadows under the sunlight, adding a strong and dynamic character to the structure. To balance this rugged natural texture and frame the building with a modern touch, smooth-cut Ivory Bayburt Tuff stone was selected for the window jambs and vertical moldings. The bright and smooth surface of the ivory tuff perfectly highlights the wild texture of the split-face olive stone. This unique stone house unites the enduring strength of nature with clean modern lines on a single facade. Providing breathability and superior natural insulation against Alucra's demanding climate, this project stands as a prime example of innovative stone house aesthetics.
Detail photographs on the following page
Project details





03 — Architecture
Ivory Bayburt Tuff Stone
Project story
Constructed in the pristine natural setting of the Alçakdere Plateau in Gümüşhane, this elegant stone house flawlessly showcases the architectural potential and structural advantages of Ivory Bayburt Tuff Stone. Exclusively utilized across the entire exterior facade, the ivory tuff seamlessly harmonizes with the plateau's natural silhouette while granting this unique stone house a bright, spacious, and noble character. Presenting one of the finest examples of classical stone house architecture, the facade features prominent arched window details, custom-crafted stone jambs, and thick moldings separating the floors, clearly demonstrating the material's excellent workability. Furthermore, the micro-porous and breathable nature of the Ivory Bayburt Tuff Stone provides this exceptional stone house with natural thermal insulation against the harsh and fluctuating climate conditions of the Alçakdere Plateau. This project stands as a premier reference of how traditional stone house aesthetics, natural climate control, and enduring strength can perfectly converge within a single material.
Detail photographs on the following page
Project details






03 — Architecture
Gray Bayburt Olive Stone + Ivory Bayburt Tuff Stone · Gumushane, Turkiye
Project story
Completed in 2024 within the social living spaces of Gümüşhane, this pergola project brings together the finest examples of nature and local craftsmanship. Two exclusive natural stones originating from Bayburt, Bayburt Ivory Tuff and Bayburt Olive Stone were harmoniously utilized in the structure and its architectural details. While Bayburt Ivory Tuff imparts a luminous and noble character to the structure with its spacious ivory shades, the Bayburt Olive Stone integrated into the accent areas completes the design with organic tonal transitions derived directly from nature. Easily workable upon extraction and hardening over time upon exposure to air, this unique combination of tuff and natural stone provides exceptional climate adaptation and thermal insulation against Gümüşhane's challenging weather conditions. These social facility gazebos have become architectural landmarks for those seeking both aesthetics and enduring durability.
Detail photographs on the following page
Project details




03 — Architecture
Gray Bayburt Olive Stone + Ivory Bayburt Tuff Stone
Project story
Realized in the unique natural setting of the Araklı Plateau in the Black Sea region, this exclusive villa project brings together two precious natural stones of Bayburt in perfect harmony. Gray Bayburt Olive Stone and Ivory Bayburt Tuff Stone were meticulously blended across the exterior cladding, architectural accents, and the outdoor fireplace area. The bright appearance and natural insulation properties provided by the ivory tuff were perfectly balanced by the noble stance and structural strength of the gray olive stone. The specialized craftsmanship, achieved by arranging cut stones of various dimensions in a horizontal format, created a natural rhythm of color and texture across the large facade surfaces. Furthermore, the rough-cut stonework preferred for the surrounding retaining walls ensured the villa's organic integration into the rugged mountainous geography. Creating a highly durable and aesthetic armor against the harsh climate conditions of the plateau, this project offers a long-lasting, prestigious living space in the heart of nature.
Detail photographs on the following page
Project details






03 — Architecture
Gray Bayburt Olive Stone + Ivory Bayburt Tuff Stone
Project story
Rising in the striking landscape of the Trabzon Limon Suyu Plateau, this modern stone villa project reflects the power of natural stone in minimalist architecture. A remarkably clean and spacious appearance is achieved by utilizing smooth Ivory Bayburt Tuff stone across the broad exterior surfaces of the building. To break this expansive monolithic look and add modern dynamism to the facade, Bayburt Olive stone, with its dark and elegant tone, was selected for the horizontal floor moldings and window jambs. The sharp color contrast created by these two distinct stones perfectly highlights the clean architectural lines of the cubic design. Providing superior natural insulation against the challenging climate conditions of the plateau with its breathable structure, this stone villa is an innovative living space that unites nature and modernism in a single mass.
Detail photographs on the following page
Project details




05 — In the Press

Bayburt Valiliği
Alaattin Koral, a businessman from Bayburt and the owner of Koral Mining operating in the natural stone sector, visited Governor Ali Hamza…
September 12, 2024

Sondakika
Bayburt Governor Hasan İpek conducted an official inspection at Koral Mining Inc. (Koral Madencilik A.Ş.), located within the Bayburt Organized Industrial Zone…
February 12, 2013

Bayburt Manşet
As one of Turkey's leading corporate groups, Cevahir Holding is actively evaluating investment opportunities in Bayburt. Upon the special invitation of AK…
August 18, 2016
05 — In the Press

Bayburt Anlık
Koral Mining, led by businessman Alaattin Koral, has brought a lasting masterpiece to the city by securing the tender for a visionary…
August 17, 2023

Milliyet
The natural stone, which was discovered in Bayburt during the Olive Branch Operation and takes its name from it, is attracting significant…
July 24, 2018
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The largest natural stone producer in Bayburt — we quarry, process and deliver stone across Türkiye.
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