A gemstones
Sieber Agate
a manmade glass-like material.
![Ammolite doublet](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/1/9/20195256/934x934.jpg?1665312806)
Ammolite
Natural gemstone.
![Andalusite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234717/712x712.jpg?1667157367)
Andalusite
Natural gemstone.
![Andesine](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234718/1260x945.jpg?1667157433)
Andesine
Natural gemstone.
![Angelite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234719/1294x1294.jpg?1667157463)
Angelite
Natural gemstone.
![Astrophyllite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234721/1124x1124.jpg?1667157497)
Astrophyllite
Natural gemstone.
![Atlantisite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234723/1505x1620.jpg?1667157555)
Atlantisite (serpentine and stichtite)
Natural gemstone.
B gemstones
![Blue John fluorite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/1/9/20195246/1200x900.jpg?1665312610)
Blue John
Variety of fluorite only found in Derbyshire, UK.
![Bowlerite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/1/9/20195608/1654x1654.jpg?1665325548)
Bowlerite
is cut from the outer skin of vintage bowling balls.
![Bridewell stone](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/1/9/20194522/678x678.jpg?1665243901)
Bridewell stone
is a manmade stone.
![Bridewell stone](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/1/9/20194524/1858x1755.jpg?1665243920)
Bridewell stone
is a manmade stone.
![Bronzite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234727/1540x1540.jpg?1667158002)
Bronzite
Natural gemstone.
C gemstones
![Calcite and scheelite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234738/1734x1734.jpg?1667158635)
Calcite & scheelite
Natural gemstone.
![Charoite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234729/1914x1914.jpg?1667158147)
Charoite
Natural gemstone.
![Chiastolite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234730/900x900.jpg?1667158218)
Chiastolite
Natural gemstone.
![](https://sites.create-cdn.net/siteimages/66/1/9/661939/21/1/2/21126852/1080x1080.jpg?1721922595)
Chinese writing stone
Natural gemstone.
![](https://sites.create-cdn.net/siteimages/66/1/9/661939/21/1/2/21126851/1080x1080.jpg?1721922592)
Chrysanthemum stone
Natural gemstone.
![Chrysoberyl](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234731/1156x867.jpg?1667158248)
Chrysoberyl
Natural gemstone.
![Chrysoprase](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234732/1200x900.jpg?1667158313)
Chrysoprase
Natural gemstone.
D gemstones
![Danburite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234733/302x302.jpg?1667158381)
Danburite
Natural gemstone.
![Demantoid garnet](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234735/870x652.jpg?1667158493)
Demantoid garnet
Natural gemstone.
![Diaspore](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234736/707x707.jpg?1667158517)
Diaspore (Csarite, Turkizite or Zultanite)
Natural gemstone.
![Dumortierite in quartzite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234737/1683x1683.jpg?1667158593)
Dumortierite in quartzite
Natural gemstone.
E gemstones
![Eudialyte](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234739/1256x1256.jpg?1667158703)
Eudialyte
Natural gemstone.
F gemstones
![Feldspar with ilmenite inclusions](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234740/1531x1532.jpg?1667158830)
Feldspar with ilmenite inclusions
Natural gemstone.
![Fire agate](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234745/1200x900.jpg?1667158967)
Fire agate
Natural gemstone.
![Firework obsidian](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/8/2/20826912/1080x1080.jpg?1702484389)
Firecracker or Firework obsidian
Natural gemstone.
![Fordite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/1/9/20194482/493x524.jpg?1665242610)
Fordite, ‘Motor agate’ or ‘Detroit agate’
layers of vehicle paint that have built up & been baked on spray booths at motor plants.
![Fossilised dinosaur bone](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/8/2/20826885/1080x1080.jpg?1702483969)
Fossilised Dinosaur bone
Natural gemstone.
Fuchsite
Natural gemstone.
G gemstones
![Goshenite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234764/1143x1143.jpg?1667159399)
Goshenite
Natural gemstone.
Grandidierite
Natural gemstone.
H gemstones
![Heliodor](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234766/869x652.jpg?1667159514)
Heliodor
Natural gemstone.
![hemimorphite](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234768/1769x1769.jpg?1667159552)
Hemimorphite
Natural gemstone.
![Hessonite garnet](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234769/905x679.jpg?1667159596)
Hessonite garnet
Natural gemstone.
![Hornblende and garnet](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234771/1261x1261.jpg?1667159646)
Hornblende and garnet
Natural gemstone.
![Hypersthene](https://sites.create-cdn.net/siteimages/66/1/9/661939/20/2/3/20234779/1214x1214.jpg?1667159725)
Hypersthene
Natural gemstone.