Green aventurine is quartz or quartzite that sparkles with tiny mica flakes. Learn its real mineral facts, where it comes from, how goldstone glass gave it its name, its traditional luck meanings, easy care and how to spot dyed quartz and glass imitations.
Hematite is the heavy, metallic iron oxide behind red ochre, Babylonian seals and the red color of Mars. Learn its mineral facts, the red streak test, history, traditional meanings, care tips and why most magnetic hematite is a manufactured imitation.
Jade is two different minerals, nephrite and jadeite. Learn how they differ, where jade comes from, its history in China, Mesoamerica and New Zealand, its traditional meanings, how to care for it and how to spot treated jade and common imitations.
Turquoise is a porous copper aluminum phosphate prized from ancient Egypt to the American Southwest. Learn its mineral facts, sources, history, traditional meanings, gentle care, common treatments and how to spot dyed howlite and other fakes.
Malachite is the banded green copper mineral behind palace columns and ancient pigments. Learn its real mineral facts, history, traditional meanings, dust and acid cautions, gentle care and how to spot resin and reconstituted fakes.
Pyrite, or fool's gold, is iron sulfide with a brassy shine and natural cubic crystals. Learn its real mineral facts, history, traditional meanings, why it must stay dry, and how to spot assembled or treated pieces.
Crystal bracelet meanings by stone, how to measure your wrist and pick bead size, which stones hold up to daily wear, how to spot dyed, glass and magnetic look-alikes, and how to care for stretch bracelets.
A guide to purple crystals and their meanings: amethyst, lepidolite, charoite, sugilite, purple fluorite, iolite and lavender jade, with real mineral facts, origins, care rules and common fakes.
A guide to pink crystals and their meanings: rose quartz, rhodonite, rhodochrosite, pink tourmaline, morganite, kunzite, pink opal and mangano calcite, with real mineral facts, care rules and common fakes.
The modern birthstone list month by month, where it came from, the traditional meanings of each stone, real hardness facts and how to clean and care for every birthstone without damaging it.