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Galaxy Diamond Granite

Black - Granite

Brazil

About

Item Details

Material Type:
Granite
Origin:
Brazil
Primary Color(s):
Black
Recommended Usage:
kitchen and bathroom countertop, wash basins, building stone, ornamental stone, stairs, interior wall and floor applications, mosaic, water-jet pattern, wall panels, table tops, balustrades, columns, fireplaces, luxury furniture
Additional Names:
Galassia Gold Granite, Galaxy Oro Granite, Galaxy Gold Granite, Brilliant Galaxy Granite, Dazzling Starry River Granite, in China stone market:璀璨星河(Cuǐ Càn Xīng Hé)
Finished Surface:
Polished,Flamed,Bush Hammered,Tumbled,Brushed,Honed,Split,Machine Cut,Natural Surface,Sandblasted,Acid Washing,Combed,Leathered,Water Jet,Chiseled,Pickling

Testing

Water Absorption:
0.15 - 0.35 %
Density:
2700 - 2800 kg/m³
Flexural Strength:
11 - 15 MPa
Compressive Strength:
150 - 170 MPa

Description

Galaxy Diamond Granite features a deep charcoal-grey to black background, densely interspersed with brilliant silvery-white mica-like sparkles and warm golden-bronze crystalline inclusions. Its highly polished surface enhances the metallic sheen and reflective qualities of the mineral crystals, creating a striking galaxy-like appearance. Dense, irregular patterns of gold and silver mineral formations contrast dramatically against the dark matrix, giving the stone exceptional visual depth and a luxurious appearance.

Texture & Structure

  • Texture: Medium to coarse-grained, crystalline and granular, with prominent reflective mineral crystals.

  • Pattern: Dense, irregular and somewhat chaotic, featuring scattered silver-white sparkles, golden-bronze inclusions, and swirling mineral formations.

  • Structure: Compact, interlocking crystalline structure with naturally distributed metallic-looking mineral grains.

  • Surface Finishes: Polished, honed, leathered, flamed.

Technical Characteristics

The following are indicative reference values for preliminary database classification, not verified laboratory test results for this specific quarry.

Property

Indicative Value

Water Absorption

0.15–0.35%

Bulk Density

2,700–2,800 kg/m³

Open Porosity

0.20–1.00%

Flexural Strength

11–15 MPa

Compressive Strength

150–170 MPa

Abrasion Resistance

15–25 mm

Mohs Hardness

6–7

Chemical & Mineralogical Composition

Indicative Mineral Composition

Mineral

Estimated Content (% by weight)

Quartz

20–35%

K-Feldspar

25–40%

Plagioclase Feldspar

10–25%

Biotite

5–15%

Muscovite

1–8%

Amphibole

0–8%

Magnetite

0–5%

Other Accessory Minerals

0–5%

Indicative Chemical Composition

Chemical Component

Estimated Content (% by weight)

SiO₂

65–75%

Al₂O₃

12–17%

K₂O

3–6%

Na₂O

2–5%

Fe₂O₃

1–5%

CaO

0.5–3%

MgO

0.5–3%

TiO₂

0.1–1.0%

Loss on Ignition (LOI)

0.1–1.5%

Note: These are illustrative compositional ranges for a possible quartz-feldspar-rich granite. Actual mineralogical and chemical composition requires XRD and XRF laboratory analysis.

Usage

Suitable for kitchen countertops, bathroom vanity tops, flooring, interior and exterior wall cladding, reception desks, hotel lobbies, commercial flooring, fireplace surrounds, staircases, bar counters, decorative feature walls, and luxury furniture applications. Its dark background and reflective crystalline inclusions make it particularly suitable for high-end residential and commercial architectural projects.

Maintenance

Clean regularly using warm water, a soft cloth, and a pH-neutral stone cleaner. Avoid abrasive cleaning pads and harsh chemicals. Apply a suitable penetrating stone sealer after testing the material's absorption characteristics. Wipe spills promptly, particularly oils and acidic substances. For polished countertops, use cutting boards and protective mats to minimize scratching and surface damage. Periodic professional cleaning and resealing may help preserve its natural shine and appearance.

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