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SangeHassan

Crystal

Crystal stone, known in Iran as sang-e chini, is chosen for slabs, floors, stairs, wall cladding and, in some projects, façades for its light backgrounds and varied veining. The products on this page are Iranian crystal stones with different patterns and grades, and should be compared on samples or photos of the batch that can be delivered. Crystal price does not depend on the product name alone: whiteness or background colour, regularity of the veins, slab soundness, grade, dimensions, thickness, polished or honed quality and order quantity all affect it. For crystal slabs, pattern continuity and sound dimensions matter; for floors and stairs, thickness, finish and installation conditions also need to be defined. A floor price per square metre is shown for selected products, and the final price is given once order details and deliverable stock are set. In a slab project, place full photos of the pieces side by side to decide vein direction and whether book-matching or a continuous pattern is possible. For floors and stairs, view the background colour under the light of the installation site, and agree thickness, surface finish and installation method with the installer before ordering. To buy crystal stone, send the stone name, slab or tile form, dimensions, area, thickness, finish and project city.

Crystal products

18 products

Frequently asked questions

How many types of Crystal does SangeHassan supply?

The SangeHassan catalogue currently lists 18 Crystal products, including Aligudarz Crystal, Laybid Crystal, Qorveh Crystal, and Sirjan Crystal.

What is the starting price of Crystal?

The published floor price for selected Crystal products starts at 700,000 Toman per m². The final price depends on grade, size, thickness, finish and order quantity, and is confirmed per batch.

What is Crystal used for?

Crystal products in this catalogue are mostly supplied for Flooring, Wall cladding, Facade, and Stairs.

Which finishes are available for Crystal?

Available Crystal finishes include Pre-Cut, Honed, Polished, Rock, Grooved, Lava, Flamed, and Bush Hammer.

In what forms is Crystal supplied?

Crystal can be ordered as Slab and Tile. Mention any cut-to-size dimensions when you request a quote.

What water absorption and strength should Crystal meet?

ASTM C503 requires building Crystal to have absorption by weight of ≤ 0.20 %, density of ≥ 2595 kg/m³ and flexural strength of ≥ 7 MPa. These are the standard's minimum requirements; check the test report of the actual batch for each shipment.

Standard technical requirements: ASTM C503

ASTM C503: Marble dimension stone standard
PropertyMinimum requirementTest method
Absorption by weight≤ 0.20 %ASTM C97
Density (calcite marble)≥ 2595 kg/m³ASTM C97
Density (dolomite marble)≥ 2800 kg/m³ASTM C97
Compressive strength≥ 52 MPaASTM C170
Modulus of rupture≥ 7 MPaASTM C99
Flexural strength≥ 7 MPaASTM C880
Abrasion resistance≥ 10 HaASTM C241 / C1353

These are the minimum physical requirements of ASTM C503 for building stone, not test results for this product. You can ask for the laboratory test report of the batch you order. Source: ASTM C503

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