Vivianite amber Viloco (sometimes called Araca) for

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

greenish brown modified rhombic/hexagonal crystals of Siderite which are sitting atop crystals of lustrous

The termination on the above specimen is very sharp and highly lustrous

the piece displays beautifully

without question

Vivianite amber Viloco (sometimes called Araca) forThese Vivianite crystals have, without question, the best luster and often gemminess of any Vivianite specimens to date from this country, or virtually any other country. Another outstanding feature is the wonderful color contrast between the vivid emerald green of the Vivianite and the altered red sandstone matrix. These pieces have what I think is some of the best matrix for these crystals from Bolivia. It's not completely unstable like decomposing