Calderite is a mineral in the garnet group with the chemical formula (Mn2+, Ca)3(Fe3+, Al)2(SiO4)3.

[4] It was named for geologist James Calder who worked on the geology of India.

The name was first applied to a rock in manganese deposits in Katkamsandi, Hazaribagh district, Bihar and at Netra, Balaghat district, Madhya Pradesh, India.

[3][4] In 1909 it was described as a mineral from Otjosondu, Otjozondjupa Region, Namibia.

This article about a specific silicate mineral is a stub.