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Demantoid from

Antetezambato Demantoid-Topazolite Mine, Antsakoamanondro, Ambanja, Diana, Madagascar

Locality type: Mining Field
Classification
Species: Andradite var: Demantoid
Formula: Ca3Fe23+(SiO4)3
Confirmation
Validity: Believed Valid
Associated Minerals Based on Photo Data:
Quartz 18 photos of Demantoid associated with Quartz at this locality.
Calcite 9 photos of Demantoid associated with Calcite at this locality.
Stilbite Subgroup 4 photos of Demantoid associated with Stilbite Subgroup at this locality.
Topazolite 4 photos of Demantoid associated with Topazolite at this locality.
Stilbite-Ca 1 photo of Demantoid associated with Stilbite-Ca at this locality.
Andradite 1 photo of Demantoid associated with Andradite at this locality.
Data
Mineral Data: Click here to view Demantoid data
Locality Data: Click here to view Antetezambato Demantoid-Topazolite Mine, Antsakoamanondro, Ambanja, Diana, Madagascar
Photo Gallery View Gallery (250 photos)
Data Identifiers
Mindat Occurrence Record ID: 646176
Long-form Identifier: 1:3:646176:8
GUID (UUID V4): 5a280e12-b136-43ee-8a12-5bbe9238fc57
References
90 Pezzotta, F. (2009). Demantoide e Topazolite: nuovo ritrovamento in Madgascar. Rivista Mineralogica Italiana, n.3-2009, 198-200 Pezzotta, F. (2010): Demantoid und Topazolith aus Antetezambato, Nordmadagaskar. Lapis, 35 (10), 31-39 Hintze, J. (2010) Eine Reise zu den Demantoiden von Antetezambato. Lapis, 35 (10) 40-43 Zwaan, J. C. (Hanco) (2022) Demantoid Garnet from Antetezambato, Northern Madagascar—Internal Characteristics and Their Use in Deciphering Geographic Origin. The Journal of Gemmology, 38 (1) 64-79 doi:10.15506/JoG.2022.38.1.64