Realgar in chalcedony
Article Abstract:
Realgar, a colorful arsenic sulfide, is a brittle and unstable mineral which posseses good cleavage. Its inclusion in chalcedony is a rare phenomenon and its fragmentation and scattered placement show that realgar may have developed before the chalcedony. Possible sites of these materials remain unknown.
Publication Name: Lapidary Journal
Subject: Hobbies and crafts
ISSN: 0023-8457
Year: 1993
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Garnet in diamond
Article Abstract:
Diamonds provide scientists a chance to analyze mineral development up to 200 kilometers below the earth's surface. The garnet group, representing one of the syngenetic diamond inclusions, is made up of pyrope, pyrope-almandine and knorringgite types.
Publication Name: Lapidary Journal
Subject: Hobbies and crafts
ISSN: 0023-8457
Year: 1993
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Millipedes in amber
Article Abstract:
One of the living things that get fossilized in amber are millipedes. Millipedes embedded in fossil resins, however, are rare. But fossilized millipedes, in complete form especially, are considered even rarer museum pieces.
Publication Name: Lapidary Journal
Subject: Hobbies and crafts
ISSN: 0023-8457
Year: 1992
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