Ametrine Information

Ametrine is a captivating gemstone that beautifully combines the colors of amethyst and citrine in a single stone, displaying zones of purple and yellow or orange. It is a variety of quartz renowned for its unique coloration.

Facts About Ametrine:

• Mineral Type: Ametrine is a type of quartz, specifically a transparent variety known as amethyst-citrine. It is composed of silicon dioxide (SiO2) with trace amounts of iron, which contribute to its coloration.
• Locations Found: The primary source of ametrine is the Anahi Mine in Bolivia, where natural occurrences of both amethyst and citrine within the same crystal structure create this distinctive gemstone. Smaller deposits have also been found in Brazil and Zambia.
• Mohs Hardness: Ametrine has a hardness of 7 on the Mohs scale, making it suitable for a variety of jewelry applications.
• Common Treatments: Ametrine is typically untreated, but like other quartz varieties, it may undergo heat treatment to enhance its colors or clarity in some cases.
• Refractive Index: The refractive index of ametrine ranges from approximately 1.544 to 1.553, similar to other quartz varieties, contributing to its brilliance and luster.
• Birefringence: Ametrine exhibits low birefringence, typically around 0.009, which is characteristic of quartz minerals.
• Specific Gravity: The specific gravity of ametrine ranges between 2.65 and 2.75, indicating its density relative to water.

Ametrine is prized for its unique color combination, making each gemstone a one-of-a-kind piece with a natural ombre effect. It is often used in jewelry such as rings, earrings, and pendants, where its vibrant hues and crystal clarity shine beautifully. As a relatively rare gemstone, ametrine continues to fascinate gem enthusiasts and collectors alike with its natural beauty and intriguing color palette.