
mineral
Amethyst and Hematite Bracelet
Amethyst (SiO2) and Hematite (Fe2O3)
Amethyst: Hardness 7, purple/lavender color, vitreous luster, hexagonal crystal system. Hematite: Hardness 5.5-6.5, metallic dark grey/silver color, metallic luster, rhombohedral system.
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Physical properties
Amethyst: Hardness 7, purple/lavender color, vitreous luster, hexagonal crystal system. Hematite: Hardness 5.5-6.5, metallic dark grey/silver color, metallic luster, rhombohedral system.
Formation & geological history
Amethyst forms in geodes within igneous volcanic rocks via hydrothermal processes. Hematite is an iron oxide mineral typically formed in sedimentary or metamorphic environments. The specimens shown are polished tumble-chips and machine-cut beads.
Uses & applications
Primary use in jewelry, fashion accessories, and metaphysical holistic practices (reiki/crystals). Amethyst is a popular gemstone; Hematite is the most important ore of iron.
Geological facts
Amethyst's purple color comes from irradiation, impurities of iron, and the presence of trace elements. Hematite is known for leaving a reddish-brown streak if scraped against unglazed porcelain.
Field identification & locations
Identification in the field for Amethyst involves looking for purple quartz crystals in volcanic cavities. Hematite is identified by its metallic sheen and high density. Commonly found in Brazil, Uruguay, and various iron mountain ranges worldwide.
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