Carbonate-rich Hydroxylapatite Laumontite I have photographed the crystals

I have photographed the crystals under the microscope to better illustrate their quality

Viloco (sometimes called Araca) for many years has stood as one of the top Cassiterite localities in the world

black cyclic twinned crystals which are associated with Quartz on matrix

A full-sized thumbnail of Amazonite with good medium blue-green color

Carbonate-rich Hydroxylapatite Laumontite I have photographed the crystalsThe area around Cerro Huanaquino is best known for its excellent Magnetite specimens, but a close second behind these pieces are the attractive and very well crystallized Carbonate rich Hydroxylapatite crystals. Carbonate rich Hydroxylapatite is actually a variety of Hydroxylapatite and is well known from a fair number of world localities, but not often are the crystals as large, attractive and well formed as the Bolivian specimens. This piece is a