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Elasticated 'Chip' AMBER
Elasticated 'Chip' AMBER
PERIDOT 5.0x0.0 Round Cabochon 0.65cts Olive Green
PERIDOT 5.0x0.0 Round Cabochon 0.65cts Olive Green
LARIMAR Cabochon 10mm Round AA
LARIMAR Cabochon 10mm Round AA
Elastic BRACELET long-chip tumbled Gold Tigereye
Elastic BRACELET long-chip tumbled Gold Tigereye
Fwt.PEARL 16 inch Temp Str. 5.0-5.5mm ROUND White
Fwt.PEARL 16 inch Temp Str. 5.0-5.5mm ROUND White
Cabochon 16x12 Oval LABRADORITE
Cabochon 16x12 Oval LABRADORITE
Tumbled Gem Mix Average 15-20mm 5kg Bag
Tumbled Gem Mix Average 15-20mm 5kg Bag
Jewellers Tool set in black wallet
Jewellers Tool set in black wallet
BEADS 36 inch HEMATITE TUMBLED
BEADS 36 inch HEMATITE TUMBLED

ICELAND SPA Calcite (Carded avge 3cms)

ICELAND SPA Calcite (Carded avge 3cms)
ICELAND SPA Calcite (Carded avge 3cms)
Ref: 23-779
The name 'Iceland Spar' relates to the clearest transparent 'crystals' of the common mineral 'Calcite'. The characteristic rhombohedral crystal shape is clearly shown in this 'cleaved' (split with a sharp blade) specimen. Exibiting the light transmission property of 'double-refraction' (bi-fringent), it will be seen that transmitted images (such as the line under this specimen) show a doubling which is particularly obvious if the crystal is rotated over the image.
Calcite usually forms as 'massive' blocks from which these rhombs can be cleaved or as 'nailhead' or 'dogtooth' crystals. This specimen is from Mexico. Average 3cms
Price:
1 item3.79 (4.55 Inc. VAT)view the price in UK Poundsview the price in eurosview the price in US Dollars
2 to 9 items3.79 (4.55 Inc. VAT)view the price in UK Poundsview the price in eurosview the price in US Dollars
10+2.84 (3.41 Inc. VAT)view the price in UK Poundsview the price in eurosview the price in US Dollars

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Our stock range, of around 10,000 items, covers hobby and professional requirements for craft/workshop/therapy use. E & O E. Copyright: Manchester Minerals Ltd. October 2017