Making a Gemstone
Illustrations

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Mineral Hardness

Mohs Scale
Common Objects
 
Talc
1
   
Softest
Gypsum
2
2.5
Fingernail
Calcite
3
3.5
Penny
Softer
Fluorite
4
4.5
Steel nail
Apatite
5
5.5
Penknife blade, glass
Soft
Feldspar
6
6.5
Steel file
 
Quartz
7
Hard
Topaz
8
 
Corundum
9
Harder
Diamond
10
Hardest



A teardrop cut out of topaz by the author

This gem was cut out of topaz.
The design is one the author developed especially for this cut.
Topaz is very hard. This stone is 10 x 7 mm in size and weighs 3.30 carats.



Aquamarine gemstone cut by the author.

This is a round brilliant cut.
It has 57 facets.



Examples of different gem shapes

Finished gemstones come in many shapes.
Some of the more popular are emerald, oval, and round brilliant.



Facet Rough

    These are some samples of facet rough materials that are used to make gemstones. The large piece at the lower left is corundum. The picture shows it to be more orange than it really is. In real life it's more of a ruby or red color. The piece just to the right of the corundum is amethyst. Just above the corundum is a citrine. Just above it is a topaz crystal. In the middle on top is a garnet crystal. Below it is another topaz crystal with some matrix stone attached to its base.



Gem Diagram

This is a diagram of an American Round Brilliant gem.
This will help you understand the names of the different parts of a gemstone.



This is
Starvation
Canyon near
Topaz Mountain

This canyon is large with many smaller canyons and mountains
that have topaz and garnet crystals.



Modern faceting machine

This is the faceting machine the author used to cut his gemstones.
Faceting machines cost from $800 to over $2500 dollars.



Rough stones on dop sticks

These aluminum dop sticks have rough stones glued to them with dopping wax.
Once a stone is firmly attached to a dop stick, it is placed in the quill
of the faceting machine and ground to the desired shape.



These are some gems cut by the author

This collection of gemstones includes corundum, sunstone, amethyst, tourmaline,
laser gem, jewelite, citrine, topaz, chocolate quartz, opal, aquamarine, and glass.
The number below each gem refers to its entry in a record book that contains all the details
about the cut gem.



This is a Q-Star cut by the author

This gem is cut out of quartz that has a little bit of amethyst color to it.
A star has been cut into the bottom of the stone and its reflection shows.
The gem measures 13 mm and weighs 10.50 carats



In Starvation Canyon near Topaz Mountain

This is a good place to look for mineral crystals such as topaz and garnet.



Two faceted gemstones cut by the author.

You will be surprised to know that the larger stone was cut from the glass of an old whiskey
bottle that I found. The smaller stone was cut from a piece of laser rod. Glass cuts into
beautiful stones. The main problem is the brittleness of glass. Both stones are
American Round Brilliant cuts. The larger stone is over 75 carats.



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