Ametrine
A variety of Quartz
What is Ametrine?
A naturally occurring variety of quartz, ametrine is a popular commercial mineral mined primarily in Bolivia and sold by the trade name of bolivianite. Prized for its gradient colors and toughness, it is regularly used in the jewelry industry. According to a legend, this mineral was first introduced in Europe in the 17th century, as a conquistador's gift to the Spanish queen.
Uses & Applications
Ametrine makes for a fascinating cut gemstone, although it has only become popular as a jewelry stone in the past few decades. This stone is so distinctive that new methods of cutting it have been developed to make the most of its two-color appeal as a faceted stone. It is used in settings for large gemstones such as drop earrings, pendants, and heavy rings.
Healing Properties
If your mind's filled with worry, ametrine may benefit you, as it's said to calm the mind by actively removing tension from the psyche. The belief is that this stone stabilizes emotions, allowing you to live a more peaceful internal life. Ametrine is said to improve physical health through boosting immune system and autonomic nervous system function.
Optical Properties
- Refractive Index
- 1.544-1.553
- Birefringence
- 0.009
- Pleochroism
- Weakly dichroic
- Optical Character
- Biaxial positive
- Dispersion
- 0.013
Discover Values
This stone excels in beauty, collection value.
Ametrine Market Value Calculator
Estimate the market value of Ametrine using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Ametrine Localities Map
See where Ametrine is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Associated Chakras
Key Characteristics
Composition of Ametrine
Silicon dioxide
Health & Safety Information
- ⚠️Harm Reason: Ametrine 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 Ametrine?
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Quick Facts
Physical Properties
- Color
- Violet, yellow, purple, orange
- Hardness (Mohs)
- 7
- Density
- 2.62 - 2.72 g/cm³
- Streak
- White
- Luster
- Vitreous
- Crystal System
- Trigonal
Chemical Properties
- Chemical Formula
- SiO2
- Elements
- O, Si
Also Known As
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