Kristanovsky Diorit Granite

Kristanovsky Diorite Granite is a dense, hard igneous stone known for its remarkable strength, durability, and modest architectural appeal. It exhibits a medium- to coarse-grained crystalline structure with a dark gray to nearly black background. This granite often displays a subtle salt-and-pepper pattern, chiefly composed of plagioclase feldspar, hornblende, and minor biotite. With very low porosity, it is typically quarried in Kristanov, Ceske Budejovice, in the Czech Republic.

Physical and Mechanical Properties:

• Water Absorption:Very low, typically around 0.1% to 0.3%.

• Density:Approximately 2.75 - 2.90 g/cm³.

• Flexural Strength:Generally ranges from 13 to 17 MPa.

• Compressive Strength:Ranges between 180 to 220 MPa.

• Hardness:High on the Mohs scale, around 6 to 7.

• Porosity:Very low, typically less than 1%.

• Slip Resistance:Depends on the finish, but generally offers good slip resistance when polished or honed.

Chemical and Mineral Compositions (% by weight):

• Plagioclase Feldspar:Approximately 50% to 60%.

• Hornblende:About 20% to 30%.

• Biotite:Roughly 5% to 10%.

• Other Minerals:Minor amounts of quartz and orthoclase feldspar and trace minerals.

Usage:

• Interior Applications:Flooring, countertops, wall cladding, and staircases due to its elegant appearance and durability.

• Exterior Applications:Building facades, paving, and monuments because of its resilience to weathering.

• Other Uses:Excellent for high-traffic areas and public spaces.

Maintenance:

• Regular cleaning with a mild detergent and water.
• Avoid harsh chemicals or abrasive cleaning tools.
• Periodical sealing may be necessary based on exposure and usage.

Available Common Surface Finish Options:

• Polished:Provides a high-gloss, reflective surface that enhances color and pattern.

• Honed:Offers a smooth, matte finish with less reflection, suitable for softer, more natural hues.

• Flamed:A rough, textured surface that provides excellent slip resistance, ideal for outdoor use.

• Brushed:Softens the overall texture with a slight gloss, offering a vintage look.

• Leathered:Provides a soft, slightly textured appearance, maintaining natural colors with low sheen.

Kristanovsky Diorite Granite, with its outstanding properties and versatile use in various architectural projects, remains a favored choice for both interior and exterior design applications.