Complete index

Gemstone Catalogue

Explore the gemstone catalogue page by page with colour tags, hardness information, and quick access to detailed profiles.

Phenakite gemstone

Phenakite

Phenakite is a beryllium silicate gemstone species known for high clarity and limited availability.

7.75 Mohs Colorless, Pale Yellow
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Phosphosiderite gemstone

Phosphosiderite

Phosphosiderite is a hydrated iron phosphate known for distinctive lilac to purple coloration.

3.75 Mohs Lilac, Purple
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Picasso Jasper gemstone

Picasso Jasper

Picasso jasper is a trade-name patterned decorative rock used for graphic line-based lapidary designs.

6.5 Mohs Grey, Black
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Picture Jasper gemstone

Picture Jasper

Picture jasper is a patterned jasper variety known for natural landscape-like designs.

6.75 Mohs Brown, Tan
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Pietersite gemstone

Pietersite

Pietersite is a brecciated chatoyant quartz aggregate with dramatic directional luster.

6.5 Mohs Blue, Gold
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Pinfire Opal gemstone

Pinfire Opal

Pinfire opal is a pattern descriptor for precious opal with fine pinpoint color flashes.

5.75 Mohs Multicolor Pinpoint Flashes, White
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Pink Apatite gemstone

Pink Apatite

Pink apatite is a calcium phosphate gemstone variety valued for delicate to vivid pink color.

5 Mohs Pink, Rose Pink
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Pink Chalcedony gemstone

Pink Chalcedony

Pink chalcedony is a pastel pink chalcedony variety used in beads and cabochon jewelry.

7 Mohs Pink, Soft Rose
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Pink Coral gemstone

Pink Coral

Pink coral is an organic gem material widely used in decorative jewelry, often requiring treatment and sourcing disclosure.

3.5 Mohs Pink, Salmon Pink
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Pink Sapphire gemstone

Pink Sapphire

Pink Sapphire profile is under factual gemological review. Properties shown here are provisional unless marked as verified.

9 Mohs Blue, Sapphire Blue
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Pink Spinel gemstone

Pink Spinel

Pink Spinel sits among the more resilient gem materials used for jewellery, which shapes both how it wears and how it is collected. That combination of pink body colour, 9 Mohs hardness, and vitreous lustre is what usually makes it recognisable in practice.

8 Mohs Pink
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Pink Tourmaline gemstone

Pink Tourmaline

Locality plays an important role in how Pink Tourmaline is understood in the gem trade. Collectors and lapidaries comparing similar stones often come to it for different reasons, but identification still comes back to pink body colour, 7 Mohs hardness, and vitreous lustre.

7.25 Mohs Pink
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Prasiolite gemstone

Prasiolite

Prasiolite is a green quartz trade variety, most commonly produced via treatment.

7 Mohs Light Green, Yellow Green
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Prehnite gemstone

Prehnite

Prehnite is a calcium aluminum silicate used as a translucent green gemstone and collector mineral.

6.25 Mohs Green, Yellow Green
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Pyrite gemstone

Pyrite

Pyrite is an iron sulfide mineral used in jewelry and ornament for its metallic luster and brassy color.

6.25 Mohs Brassy Yellow, Gold
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Pyrope gemstone

Pyrope

Pyrope is a magnesium-rich red garnet species prized for saturated color and durability.

7.25 Mohs Deep Red, Purplish Red
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Rainbow Moonstone gemstone

Rainbow Moonstone

Rainbow moonstone is a trade name typically applied to white labradorite showing colorful flash.

6 Mohs White, Blue Flash
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Raspberry Quartz gemstone

Raspberry Quartz

Raspberry quartz is a trade term for red-pink quartz material, requiring treatment disclosure when applicable.

7 Mohs Raspberry Red, Pink Red
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Red Beryl gemstone

Red Beryl

Red Beryl is often discussed with one eye on colour and the other on where the material comes from. Collectors and lapidaries comparing similar stones often come to it for different reasons, but identification still comes back to red body colour, 7.5 Mohs hardness, and vitreous lustre.

7.5 Mohs Red
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Red Coral gemstone

Red Coral

Red coral is an organic gemstone material with longstanding decorative and cultural use.

3.5 Mohs Red, Orange Red
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Red Jasper gemstone

Red Jasper

Red jasper is an iron-rich opaque chalcedony variety used extensively in lapidary work.

6.75 Mohs Red, Brick Red
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Red Spinel gemstone

Red Spinel

Red Spinel sits among the more resilient gem materials used for jewellery, which shapes both how it wears and how it is collected. That combination of red body colour, 9 Mohs hardness, and vitreous lustre is what usually makes it recognisable in practice.

8 Mohs Red
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Rhodochrosite gemstone

Rhodochrosite

Rhodochrosite is a manganese carbonate known for pink to red coloration and characteristic banding in many lapidary pieces.

3.75 Mohs Pink, Raspberry
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Rhodolite gemstone

Rhodolite

Rhodolite is a pyrope-almandine garnet blend valued for bright rose-red to purplish-red color.

7.25 Mohs Raspberry Red, Purplish Red
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