Glittering Stones >>Comparison of gemstones
Comparison of Gems
Gemstones are actually minerals which are in form of crystals. They are attractive to the eyes and its most popularly used in ornaments and accessories. Not every gemstone is similar. Some gemstones are hard while some gemstones are soft. Some gemsrones have luster and some gemstones dont shine. Each gemstone has its own unique quality and feature.They are usually charecterized using diffrent factors like hardness(based on mohs scale),transparency color etc.Here are some of the factors that make specific gemstones different from the other.
Diamond is known for being the hardest material ever.They are lustrous Transparent stones.Diamonds are very durable and mostly used in ornaments.
Emeralds are beautiful green stones.It is a variety of the beryl family.If the stone is treated with heat it becomes aquamarine.
C
Be3Al2(SiO3)6
Cubic
Hexagonal
3.52 ±0.01
2.6 - 2.8
10
7.5-8
Adamantine
Vitreous
Colorless
White
2.417 - 2.419
1.57 - 1.58
Ruby is a red transparent stone. It is a hard and durable stone. Rubies are mostly used in ornaments.
Sapphire is a beautiful blue stone. It comes in different shades of blue. It is a hard and transparent stone.
Al2O3,Cr
Al2O3
Trigonal
Trigonal
3.9 - 4.1
3.9 - 4.1
9
9
Vitreous to Adamantine
Vitreous
White
White
1.76 - 1.77
1.76 - 1.77
Peridot is a beautiful looking gemstone which was famous during ancient times. The stone is green in color and is shiny at night and day..
Pearls are very precious and valuable gemstones. They are beautiful gems and are organic stone which is formed underwater by living things.
(Mg, Fe)2SiO4
CaCO3
Orthorhombic
Orthorhombic
1.54 - 1.55
1.54 - 1.55
6.5 - 7
2.5 - 4.5
Vitreous
Pearly
None
Pearly
1.64–1.70
1.52 - 1.69
Spinel is a bright red stone which is similar to Ruby.It also comes in different colors.
Ruby is a red transparent stone. It is a hard and durable stone. Rubies are mostly used in ornaments.
MgAl2O4
Al2O3,Cr
Cubic
Trigonal
3.5 - 3.7
3.9 - 4.1
7.5 - 8
9
Vitreous
Vitreous to Adamantine
White
White
1.712 - 1.736
1.76 - 1.77
Zircon is a valuable stone which comes in different colors. It is sometimes compared to a diamond because of its appearance. It is hard stone with good luster.
Diamond is known for being the hardest material ever. They are lustrous Transparent stones. Diamonds are very durable and mostly used in ornaments..
ZrSiO4
C
Tetragonal
Cubic
4.6 - 4.8
3.52 ±0.01
7.5
10
Adamantine
Adamantine
White
Colorless
1.930 - 1.987
2.417 - 2.419
Amethyst is a precious stone which is usually purple in color. It is a variety of quartz and can be easily be found.
Coral is red organic stone. It is formed under the ocean from the coral polyps. In most cases the stone is red but it can also be pinkish or orange.
SiO2
CaCO3
Trigonal
Amorphous
2.63 - 2.65
2.6 - 2.7
7
3 - 4
Vitreous
Vitreous
White
White to Pinkish red
1.54 - 1.55
1.48 - 1.65
Aquamarine is a beautiful blue stone which is a variety of the beryl group like emerald.
Emeralds are beautiful green stones. It is a variety of the beryl family. If the stone is treated with heat it becomes aquamarine.
Be3Al2SiO₆
Be3Al2(SiO3)6
Hexagonal
Hexagonal
2.6 - 2.8
2.6 - 2.8
7.5 - 8.0
7.5 - 8.0
Vitreous
Vitreous
Colorless
White
1.57 - 1.58
1.57 - 1.58
Amber is a valuable stone. It is fossilized tree resin. Amber is usually yellow or red color. It is mostly opaque in nature.
Bloodstone is a greenish stone which has spots which looks like blood stain. It is variety of jasper. The mineral is also called heliotrope.
Amber is made up of complex organic matter and hence it does not have definite formula
SiO2
Amorphous
Trigonal
1.930 - 1.987
2.63 - 2.65
2-2.5
7
Resinous
Vitreous
White
Colorless
1.539 - 1.545
1.54 - 1.55
Garnet is a group of minerals. It can have different colors but mostly it is found in dark red color.
Sapphire is a beautiful blue stone. It comes in different shades of blue. It is a hard and transparent stone.
X3Y2(SiO4)3
Al2O3
Isometric
Trigonal
3.5 - 4.3
3.9 - 4.1
6.5-8.5
9
Vitreous
Vitreous
White
White to Pinkish red
1.780 - 1.889
1.76 - 1.77
Lapis lazuli is a blue opaque stone used for a very long time. It is often called as Lapis. The stone is a semi precious stone used to make beads.
Coral is red organic stone. It is formed under the ocean from the coral polyps. In most cases the stone is red but it can also be pinkish or orange.
(Na,Ca8 Al6 Si6 O24(S,SO)4
CaCO3
Isometric
Amorphous
2.4 - 2.5
2.6 - 2.7
5-5.5
3 - 4
Dull
Vitreous
Light blue
White to Pinkish red
1.5
1.48 - 1.65
Amethyst is a precious stone which is usually purple in color. It is a variety of quartz and can be easily be found.
Sugilite is a valuable rare pink stone. The stone was first discovered in Japan. The purple color of the stone attracts everyone.
SiO2
KNa2 (Fe,Mn,Al)2 Li3 Si12 O30
Trigonal
Hexagonal
2.63 - 2.65
2.74
7
6-6.5
Vitreous
Vitreous
White
White
1.54 - 1.55
nω = 1.610 nε = 1.607
Sunstone is a feldspar stone with glittery effect. It s bright orange or yellowish in color and is mostly transparent.
Moonstone is a beautiful shiny stone. It is a transparent stone which makes it more precious but it is affordable. It belongs to the feldspar group.
(Ca,Na)(Al,Si)2 Si2O8)
KAlSi3O8
Triclinic
Monoclinic
2.62 - 2.65
2.56 - 2.62
6 - 6.5
6 - 6.5
Vitreous
Pearly
White
White
1.525 - 1.548
1.518 - 1.526
Topaz is a popular gemstone. Its blue color and its hardness is the key factor. Blue topaz is rare and very hard to find.
Citrine belongs to the quartz family. It is a beautiful yellow stone. Citrine is a perfect and affordable gem.
Al2SiO4(F,OH)2
SiO2
Orthorhombic
Hexagonal
3.4 - 3.6
2.63 - 2.65
8
7
Vitreous
Vitreous
White
White
1.610 - 1.638
1.54 - 1.55
Turquoise is an opaque bluish stone which has been used for a long time. It comes in different shades and is a soft stone.
Emeralds are beautiful green stones. It is a variety of the beryl family. If the stone is treated with heat it becomes aquamarine..
Cu Al6 (PO4)4 (OH)8·4H2O
Be3 Al2 (SiO3)6
Triclinic
Hexagonal
2.6–2.9
2.6 - 2.8
5-6
7.5-8
Waxy
Vitreous
Bluish White
White
1.61 - 1.65
1.57 - 1.58
Tourmaline is pretty colorful gemstone. It comes in various colors. It is not formed by a single mineral but by a group of minerals.
Iolite belongs to Cordierite family.It a purplish stone but the color looks different from different angles.
X1Y3 Al6(BO3)3 Si6 O18(OH)4
Mg2 Al4 Si5O18
Trigonal
Orthorhombic
2.9 - 3.3
2.6 - 2.7
7-7.5
7-7.5
Vitreous
Vitreous
White
White
1.616 - 1.650
1.55 - 1.62
Peridot is a beautiful looking gemstone which was famous during ancient times. The stone is green in color and is shiny at night and day.
Emeralds are beautiful green stones. It is a variety of the beryl family. If the stone is treated with heat it becomes aquamarine.
(Mg, Fe)2SiO4
Be3 Al2 (SiO3)6
Orthorhombic
Hexagonal
1.54 - 1.55
2.6 - 2.8
6.5 - 7
7.5-8
Vitreous
Vitreous
None
White
1.64–1.70
1.57 - 1.58
NOVEMBER BIRTHSTONE - CITRINE
COMMEMORATIVE EVENT - 13th Anniversary
KEYWORDS - Success, Abundance, Personal Power
ALSO KNOWN AS - Merchant's stone, Success stone
COLORS - Pale yellow to brown
OCCURRENCE - Brazil
COLOR ZONING - Tiger stripes or Zebra stripes
 |
|