Andesine
Andesine is a silicate mineral prized by collectors for its exceptional color range.
About Andesine
Andesine is a silicate mineral in the feldspar group (plagioclase series) and has the chemical formula (Ca,Na)(Al,Si)AlSi2O8 [An30-An50]. It crystallizes in the triclinic system and is one of the most visually varied minerals in the collector market.
Identification & care
Specimens usually show tabular, massive; polysynthetic twinning. Its color range is broad, including white, gray, pink, greenish, and some show adularescence (labradorescence). The luster is vitreous to pearly, the streak is white, and specimens range from transparent to translucent. The cleavage is perfect {001} and {010}. The fracture is uneven to conchoidal, which aids identification.
Collector context
Collector notes
Among collectors of crystallized species, Andesine is a recognized reference.
Frequently asked questions
What is Andesine?
Andesine is a silicate mineral prized by collectors for its exceptional color range.
What crystal system does Andesine belong to?
Andesine crystallises in the Triclinic crystal system.
References & databases
Mindat.org is the world’s largest open mineralogy database. Our descriptions are written independently and fact-checked.