Four Treasures Reference Database
Record No. 766
![[Montana sapphires]](/components/com_lotusgemologypublications/assets/noimage.jpg "[Montana sapphires]")
[Montana sapphires]
Montana sapphires
Journal Article
Financial Observer and Mining Herald (1891) [Montana sapphires]. Financial Observer and Mining Herald, London, 29 August, 7 November,
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corundum, Montana.12, USA.12, gems