Indonesia

Indonesia
Deep purple grape agate large cluster from Indonesia

Indonesia, a volcanic archipelago, is best known among collectors for native sulfur from its active volcanoes, alongside gold-silver and base-metal deposits.

About Indonesiaextended article

What it is known for

Indonesia's volcanoes — notably Kawah Ijen on Java — yield bright yellow native sulfur, while its epithermal and porphyry systems produce gold, silver, and base metals. Crystallised calcite and quartz come from various districts.

What collectors look for

Vivid native sulfur is the most distinctive Indonesian collector material, along with the occasional fine gold and crystallised calcite.

References & databases

Mindat.org is the world’s largest open mineralogy database.

Specimens from Indonesia

9 specimens