Oligoclase is a translucent to transparent member of the plagioclase feldspar series, typically displaying white, gray, or subtle green hues. It is valued by collectors and occasional jewelry makers for its crystal clarity and historic use in ornamental pieces, prompting interest in its properties and care.
Bytownite is a calcium‑rich member of the plagioclase feldspar series, valued for its clear to milky white hues and good durability. It is used in fine jewelry, collectors’ pieces, and is prized for its subtle sparkle and historic significance.
Enstatite is a magnesium silicate gemstone from the pyroxene family, typically presenting green to gray hues. It is valued for its unique crystal habit and is used in fine jewelry, while also carrying traditional meanings of grounding and clarity for collectors.
Gypsum is a soft, water‑bearing sulfate mineral most often found in white or translucent forms such as selenite and alabaster, valued for its delicate beauty, metaphysical lore, and carving potential.
Cymophane is a rare, chatoyant variety of chrysoberyl known for its striking ‘cat’s eye’ effect. This guide explores its optical properties, identification, and value factors for collectors and gemologists.
Tektites is a group of natural glass stones formed when terrestrial material melts during meteorite impacts, producing black, brown, green or orange glassy gems that are prized for their unique origin, striking appearance, and use in jewelry and metaphysical practices.
