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

Grape Agate Pterosaur Hand-Carved Sculpture, Indonesia

Grape Agate Cluster, Lavender and Violet, Indonesia

Grape Agate Cluster, Deep Purple, Indonesia

Grape Agate Cluster, Multicolor, Indonesia

Botryoidal Grape Agate – Deep Purple – Sulawesi, Indonesia

Grape Agate Cluster – Botryoidal Chalcedony – Sulawesi, Indonesia

Grape Agate Chalcedony Cluster – Purple Botryoidal – Indonesia

Grape Agate Chalcedony Cluster – Botryoidal – Sulawesi, Indonesia
