gemstone
Diamond / Clear Quartz / Glass paste
Carbon (Diamond) / Silicon Dioxide (Quartz)
Hardness: 7 (Quartz) to 10 (Diamond). Color: Colorless. Luster: Adamantine to Vitreous. Cut: Faceted. Specific Gravity: 2.65 to 3.52.
- Hardness
- 7 (Quartz) to 10 (Diamond)
- Color
- Colorless
- Luster
- Adamantine to Vitreous
Identified More gemstone →
Explore Diamond / Clear Quartz / Glass paste in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 7 (Quartz) to 10 (Diamond). Color: Colorless. Luster: Adamantine to Vitreous. Cut: Faceted. Specific Gravity: 2.65 to 3.52.
Formation & geological history
Diamonds form under extreme pressure and heat deep in Earth's mantle over billions of years. Quartz forms from cooling magma or hydrothermal veins. This specimen appears man-made or professionally faceted from raw material.
Uses & applications
Primary use as jewelry (gemstone) or as decorative 'rhinestones' for clothing and accessories. Large diamonds are used for industrial cutting and drilling.
Geological facts
Diamond is the hardest natural substance known on Earth. Clear quartz was often used by ancient cultures for crystal balls and amulets.
Field identification & locations
Field identification of faceted stones is difficult; professional tools like a refractometer or thermal conductivity probe are required to distinguish between diamond, white sapphire, quartz, or cubic zirconia.
More like this
Other gemstone specimens
Ammolite
Ammolite (Biogenic Aragonite with trace elements; fossils of Placenticeras meeki and Placenticeras intercalare)
mineral
Emerald
Beryl (Be₃Al₂Si₆Oထ₈) with Chromium/Vanadium impurities
gemstone
Amber
Succinite (Organic Gemstone)
mineral
Citrine
Silicon Dioxide (SiO2) with iron impurities
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
mineral
Amber
Succinrite (Organic Gemstone)
mineraloid