AGATE WITH QUARTZ PART POLISHED NODULE
ORIGIN:
Product Details
- CRYSTAL/MINERAL
- AGATE
QUARTZ - location
- Brazil
- SKU
- 004502
- DIMENSIONS
- 42cm x 42cm x 45cm (16.5 inches x 16.5 inches x 17.7 inches) including the stand
- GEOLOGICAL FORMATION
- AGATE
Agate forms in cavities within volcanic and sedimentary rocks through the slow precipitation of silica-rich groundwater over millions of years. This cryptocrystalline variety of quartz displays characteristic concentric banding created by successive layers of mineral deposition, with each band representing a distinct phase of formation.
The stone exhibits translucency to opacity with a vitreous to waxy luster. Color variations result from trace mineral inclusions—iron oxides produce reds and yellows, manganese creates purples and pinks, while chromium generates greens. The distinctive banded patterns form as silica gel fills rock cavities from the outside inward, creating the diagnostic layered structure.
Agate has been utilized since the Neolithic period, with significant historical deposits in the Nahe River valley of Germany giving the mineral its name. The stone's durability stems from its 6.5-7 Mohs hardness rating and fine-grained structure, allowing for detailed carving and high polish retention.
Hardness: 6.5-7 on the Mohs scale | Crystal System: Hexagonal | Composition: SiO₂ (Silicon dioxide)
CLEAR QUARTZ
Clear Quartz is silicon dioxide (SiO₂) and ranks as one of the most abundant minerals in the Earth's continental crust. It crystallizes in the hexagonal system, typically forming six-sided prismatic crystals terminated by pyramidal faces, though massive and granular varieties are equally common.
The mineral exhibits a hardness of 7 on the Mohs scale and displays no cleavage, instead breaking with a distinctive conchoidal fracture that produces sharp, curved surfaces. Clear Quartz is colorless and transparent.
Clear Quartz demonstrates piezoelectric properties, generating electrical charge under mechanical stress—a characteristic that makes it valuable in electronic applications. The mineral also shows strong resistance to chemical weathering, persisting in sedimentary environments long after other minerals have decomposed.
Found in igneous rocks like granite and rhyolite, metamorphic rocks such as quartzite and gneiss, and as hydrothermal vein deposits, quartz occurs in virtually every geological environment. Its durability and chemical stability make it a primary component of sandstone and a dominant constituent of many soils.
Hardness: 7 | Crystal System: Hexagonal | Composition: SiO₂
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AGATE WITH QUARTZ PART POLISHED NODULE
Sale priceAED 190,000.00