Podcast
Questions and Answers
What is the Italian name for oxblood coral?
What is the Italian name for oxblood coral?
- salmon
- arciscuro
- pelle d’angelo
- rosso scuro (correct)
What is Abalone Shell also known as?
What is Abalone Shell also known as?
- Akabar coral
- Ammolite
- Korite
- Paua (correct)
What is a common artificial imitator of Amber?
What is a common artificial imitator of Amber?
- Casein
- Glass
- Bakelite (correct)
- Epoxy
What is a common imitation material for Coral?
What is a common imitation material for Coral?
What is a type of coral that lacks the wood-grain-like structure lines of natural coral?
What is a type of coral that lacks the wood-grain-like structure lines of natural coral?
Where is the main source of jet?
Where is the main source of jet?
Which country is also a major source of jet besides England?
Which country is also a major source of jet besides England?
What is the closest association with jet in England?
What is the closest association with jet in England?
What is Jet mostly used for in the late Victorian era?
What is Jet mostly used for in the late Victorian era?
Which type of obsidian is characterized by a golden or silver sheen?
Which type of obsidian is characterized by a golden or silver sheen?
What is the primary source of Amber in the world?
What is the primary source of Amber in the world?
What is Sphene typically cut into to emphasize its fire?
What is Sphene typically cut into to emphasize its fire?
Where is Golden Coral primarily found?
Where is Golden Coral primarily found?
What is Jet composed of?
What is Jet composed of?
How is Jet formed?
How is Jet formed?
What type of coal is Jet?
What type of coal is Jet?
What is the process that creates Jet?
What is the process that creates Jet?
What type of coal is often used as a substitute for jet?
What type of coal is often used as a substitute for jet?
What is Vulcanite, which is often used to imitate jet?
What is Vulcanite, which is often used to imitate jet?
What is another material often used to imitate jet?
What is another material often used to imitate jet?
What is another type of material used to imitate jet?
What is another type of material used to imitate jet?
What is obsidian often used to imitate?
What is obsidian often used to imitate?
What is the characteristic of Jet in terms of its polish luster?
What is the characteristic of Jet in terms of its polish luster?
What is the typical color range of Tortoise Shell?
What is the typical color range of Tortoise Shell?
What is the primary color of Apatite?
What is the primary color of Apatite?
What is the typical color range of Kyanite?
What is the typical color range of Kyanite?
What is the characteristic of Benitoite in terms of its pleochroism?
What is the characteristic of Benitoite in terms of its pleochroism?
What is the typical color range of Moldavite?
What is the typical color range of Moldavite?
What is the characteristic of Fluorite in terms of its transparency?
What is the characteristic of Fluorite in terms of its transparency?
What is the characteristic of Ammonite in terms of its color?
What is the characteristic of Ammonite in terms of its color?
What is the typical polish luster of Jet?
What is the typical polish luster of Jet?
What is the characteristic of Benitoite in terms of its zoning?
What is the characteristic of Benitoite in terms of its zoning?
What is 'Paris jet' actually made of?
What is 'Paris jet' actually made of?
Which characteristic is unique to Amber?
Which characteristic is unique to Amber?
Which material is often etched with acid?
Which material is often etched with acid?
What is a common use for Obsidian in prehistoric times?
What is a common use for Obsidian in prehistoric times?
What is the name of the massive crystalline variety of fluorite other then Blue John?
What is the name of the massive crystalline variety of fluorite other then Blue John?
Study Notes
Trades Names and Synonyms
- Coral: "oxblood" in English, "rosso scuro" or "arciscuro" in Italian, "pelle d'angelo" for pink coral, and "salmon" for vivid pink coral
- Conchiolin coral: also known as "King" or "Akabar coral" or "Horn Coral"
- Abalone Shell: also known as "paua" in Maori
- Ammonite: also marketed as "ammolite" and "korite"
Main Sources and Locations
- Amber: Baltic Sea region of Europe, Dominican Republic, Germany, Lithuania, Poland, Russia, Denmark, Mexico, Alaska, and Myanmar's Kachin State
- Coral: Mediterranean Sea, Japan, Malaysia, Philippines, Taiwan, and Queensland, Australia
- Conchiolin coral: Queensland, Australia, and Hawaii, USA
- Ammonite: Canada, England, Morocco, and the USA
- Tortoise Shell: Atlantic hawksbill sea turtle, found in tropical and subtropical seas worldwide
- Jet: England, Canada, France, Germany, Spain, and the USA
- Apatite: Madagascar, Brazil, Mexico, Myanmar, and the USA
- Benitoite: San Benito County, California, USA
- Fluorite: China, England, Switzerland, and the USA
- Kyanite: Brazil, India, Kenya, Myanmar, Pakistan, Switzerland, the USA, and Russia
- Moldavite: Western Moravia, Germany
- Sphene: Austria, Brazil, Canada, France, Madagascar, Mexico, Myanmar, Sri Lanka, Switzerland, the USA, and Russia
Common Imitations and Treatments
- Amber: Copal, Bakelite, Casein, epoxy, glass, and polyester are common imitations
- Coral: Glass, porcelain, and various plastics are common imitations, Gilson imitation coral, and corozo nuts are stained to mimic Mediterranean coral
- Tortoise Shell: Celluloid, casein, and Bakelite plastics are common imitations
- Ivory: Celluloid, plastics, and fine plaster of Paris are common imitations, bleached and dyed to give an antique appearance
- Shells: Molded glass and plastic are common imitations
- Jet: Cannel and anthracite, Vulcanite, glass, obsidian, and plastics are common imitations
Common Cuts and Jewelry
- Amber: Cabochon, beads, and carvings
- Coral: Beads, cabochons, carvings, and cameos
- Tortoise Shell: Inlaid pieces with gold, silver, or mother-of-pearl in floral and geometric patterns
- Ivory: Carvings, cabochons, beads, and bangle bracelets
- Ammonite: Cabochons, free forms, tablets, ovals, and squares
- Jet: Beads, buttons, carvings, faceted pieces, and cabochons
- Benitoite: Strong but rare, mostly set in high-end jewelry
- Fluorite: Beads and carvings, mounted crystals for "new age" pendants
- Kyanite: Faceted into brilliant and step cuts in a variety of sizes
- Moldavite: Faceted into brilliant and step cuts in a variety of sizes, or set as natural uncut pieces
- Sphene: Cut brilliant-cut and mixed-cut styles to emphasize its fire
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Description
Test your knowledge about various materials used to imitate ivory, including celluloid, bones, deer horn, and vegetable-source ivory. Learn to identify the differences between these materials and the real thing. Discover the unique characteristics of each ivory imitator.
