Rock Identifier
Amethyst and Hematite Bracelet (Amethyst (SiO2) and Hematite (Fe2O3)) — mineral
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.