Ghost Crystal
A variety of Quartz
Uncommon
What is Ghost Crystal?
Ghost Crystal is an umbrella term for transparent crystals of various minerals such as quartz, calcite, fluorite, tourmaline, and others with similar properties. Specimens of these stones that can be called "ghost Crystals" are the ones that show unusual, ghost-like crystallizations or blemishes inside its more transparent mass.
Optical Properties
- Refractive Index
- 1.544-1.553
- Birefringence
- 0.009
- Pleochroism
- Weakly dichroic
- Optical Character
- Biaxial positive
- Dispersion
- 0.013
Discover Values
Rarity
3.9out of 5.0
78%
Popularity
3.6out of 5.0
72%
Beauty
4.1out of 5.0
82%
Cultural Value
4.0out of 5.0
80%
Collection Value
4.2out of 5.0
84%
Ghost Crystal Market Value Calculator
Estimate the market value of Ghost Crystal using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Ghost Crystal Localities Map
See where Ghost Crystal is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
Health & Safety Information
- ⚠️Harm Reason: Ghost Crystal in powdered form can be toxic due to its Crystalline Silica content.
- ⚠️Physical Toxicity: Quartz, silica, crystalline silica and flint are non-toxic materials, but very fine dust containing quartz, known as respirable crystalline silicon (RCS), can cause serious and fatal lung disease. Lapidaries should exercise caution when cutting silica.
- ⚠️How to prevent the risks of Ghost Crystal?
Quick Facts
Physical Properties
- Color
- Green, colorless, white, brown, red, gray, purple, etc.
- Hardness (Mohs)
- 7
- Density
- 2.64 - 2.69 g/cm³
- Streak
- White, colorless
- Luster
- Vitreous
- Crystal System
- Trigonal
Chemical Properties
- Chemical Formula
- SiO2
- Elements
- O, Si
Also Known As
Ghost CrystalLodoliteAmphibole Quartz
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