ROUGH GEMSTONES COLLECTED IN SOUTH AFRICA |
Examples of rough gemstones are shown below. Click on any picture to enlarge. |
BERYL |
 | | Aquamarine - faceting grade material, various shades - blue, green, pale blue and green |
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FELDSPAR |
 | | Feldspar - solid material, takes excellent polish, various colours, orange to dark red |
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 | | Unakite - pink feldspar, green epidote and quartz |
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 | | Sodalite - solid massive material, dark blue with white Ankerite |
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GARNET |
 | | Pyrope - alluvial diamond fields, faceting grade material, brownish orange to red and red to red brown |
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| | Hydrogrossular - known as "Transvaal Jade", massive, translucent to subtranslucent to opaque, green due to chromium and pink due to manganese or mixed colours, even texture, polishes well |
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 | » | Hydrogrossular - various green, dark and light |
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 | » | Hydrogrossular - light pink |
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 | » | Hydrogrossular - pink and light green mixed |
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QUARTZ CRYSTALLINE |
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 | » | Amethyst - faceting grade material, purple to light violet |
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 | » | Amethyst - purple to light violet with colourless material |
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 | | Rose Quartz - deep pink, always included and cracked, from chip size to large blocks, cuts and polishes well |
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QUARTZ CRYPTOCRYSTALLINE |
 | | Agate - distinctly banded Chalcedony, layers differing in colour, from several locations in South Africa |
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 | | Blue Lace Agate - translucent Chalcedony with white and blue bands, various shades from light blue to deep blue |
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 | | Moss Agate - clear to milky translucent Chalcedony with moss appearances in red (iron) black (manganese) and green (chlorite) |
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 | | Rainbow Chalcedony - brilliant mixed colours - white, yellow, red, brown, blue, grey and black, contains soft inclusions and fine cavities |
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 | | Carnelian - a yellow, orange, red or brown chalcedony, normally tumbled to expose the colour and recut thereafter |
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 | » | Red Jasper - with white and black Quartz inclusions |
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 | » | Kalahari Picture Stone - yellow Quartz layers separated by iron stained bans, porous material |
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 | » | Mugglestone - banded red, brown, white and cream material with brown to black Hematite layers |
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 | » | Porcelain Jasper - yellow, red, brown, green or blue in colour, very hard, takes beautiful polish |
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 | | Tigerseye - yellow brown, medium thickness slabs |
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 | | Budd Stone - distinctive contoured green and white layers, swizling appearance |
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 | | Green Quartz - nice solid material colour due to Fuchsite |
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 | | Pudding Stone - red, yellow, white, green, brown and black Jasper and other rounded pebbles in solid or translucent chert |
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IRONSTONE |
 | | Ironstone - yellow to yellow brown and ironoxide banded, tends to undercut but takes good polish |
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MALACHITE |
 | | Malachite - beautiful banded material, takes good polish |
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SERPENTINE |
 | | Serpentine - massive green serpentine, striped light green to dark green to brown, takes a matt polish |
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 | | Bowenite - Namaqualand Jade - mottled pale green and dark green - takes a fair polish |
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SUGILITE |
 | | Sugilite - purple to reddish purple |
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AFRICAN TURQUOISE |
 | | African Turquoise - massive material - ideal for cutting and carving |
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VERDITE |
 | | Verdite - massive fine grained, vibrant dark green to emerald green, a soft rock, takes a matt polish |
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