Discovered by Ferdinand Reich and Hieronymous
Richter at Frieberg, Germany.
Remarks
Soft, silvery-white metal. Stable in air and
with water, dissolves in acids. Used in low melting alloys in safety
devices. Semiconductor uses as InAs and InSb in transistors, thermistors,
etc.
Diagnostic tests:
There are no simple chemical tests for indium. Atomic Absorption
Spectroscopy is used for quantitative analysis and Energy Dispersive
Analysis of X-rays (EDAX) is used for qualitative analysis.
(* - Mineral Name Is Not IMA Approved)
(! - New Dana classification added or changed from Danas New Mineralogy)
(? - IMA Discredited Mineral Species Name)
There are 13 minerals with In in the Mineralogy Database.