Rock Identifier
Dendritic Quartz (Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions) — mineral
mineral

Dendritic Quartz

Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions

Hardness: 7 on Mohs scale; Color: Clear to milky white with black/brown branching inclusions; Luster: Vitreous; Crystal Structure: Trigonal; Specific Gravity: 2.65

Hardness
7 on Mohs scale
Color
Clear to milky white with black/brown branching inclusions
Luster
Vitreous
Identified More mineral

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Physical properties

Hardness: 7 on Mohs scale; Color: Clear to milky white with black/brown branching inclusions; Luster: Vitreous; Crystal Structure: Trigonal; Specific Gravity: 2.65

Formation & geological history

Formed when mineral-rich water (carrying manganese or iron) flows through fractures in quartz, crystallizing into branching patterns called dendrites. Found globally in hydrothermal veins.

Uses & applications

Primarily used in jewelry (cabochons), as collector specimens, and in metaphysical practices.

Geological facts

The term 'dendrite' comes from the Greek word 'dendron' meaning tree, due to the plant-like appearance of the inclusions. Many people mistakenly think these are fossilized moss or plants.

Field identification & locations

Identify by looking for 'fern-like' or 'branching' patterns inside clear or translucent stone. Common in Brazil, India, and Madagascar. High-quality patterns are more prized.