RockVault
Danburite

Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)

orthorhombicuncommonsilicates

Danburite

CaB₂Si₂O₈

This image displays a cluster of well-formed, transparent to translucent, colorless to pale yellow prismatic danburite crystals with distinct terminations.

Danburite Physical Properties

Mohs Hardness

7

Crystal System

orthorhombic

Luster

vitreous

Streak Color

white

Cleavage

poor on {001}

Fracture

conchoidal

Specific Gravity

3

Colors

colorless, white, pale yellow, pink, brown

Transparency

transparent

Type Locality

Russell, St Lawrence County, New York, USA

Mineral Group

silicates

Uses

jewelry, collector

Associated Minerals

quartz, calcite, feldspar, datolite, apophyllite

Rarity

uncommon

Geological Context

Danburite typically forms in contact metamorphic rocks, pegmatites, and hydrothermal veins, often associated with granitic intrusions or carbonate rocks.