| 词条 | Assembled gem |
| 释义 |
An assembled gem (also called a composite gem)[1] is a gemstone made up of other smaller gems.[2] An assembled gem can often be a fake gem with a desirable piece of gemstone attached to pieces of inexpensive imitation gemstones.[3] For example, a combination of a thin layer of green glass and a colorless piece of quartz would be a composite gem.[4] TypesAssembled gems are classified based on how many gemstones were used to create the assembled gemstone.[5] A doublet is a type of assembled gem which is composed of two parts. A false doublet is a doublet which is a glass piece that looks like a real gem and a real gem that have been attached to look like a larger gem.[5] A triplet is a type of assembled gem which is composed of three distinct parts.[5] References1. ^{{Cite book|url=https://books.google.com/books?id=b-7fBAAAQBAJ&pg=PA212&dq=composite+gemstones&hl=en&sa=X&ved=0ahUKEwjf772t8__WAhVrxlQKHQaZAcoQ6AEIJjAA#v=onepage&q=composite%20gemstones&f=false|title=Gemmology|last=Read|first=P. G.|date=2013-10-22|publisher=Elsevier|isbn=9781483144672|language=en}} {{mineral-stub}}2. ^{{Cite book|url=https://books.google.com/books?id=9n4tAjDtC3UC&q=%22Assembled+gem%22++gem+that+is+made+from+smaller+stones&dq=%22Assembled+gem%22++gem+that+is+made+from+smaller+stones&hl=en&sa=X&ved=0ahUKEwj_0PfO8v_WAhWqi1QKHY2uCMkQ6AEIJjAA|title=The New Encyclopaedia Britannica|last=inc|first=Encyclopaedia Britannica|date=1992|publisher=Encyclopaedia Britannica|isbn=9780852295533|language=en}} 3. ^{{Cite news|url=https://www.thespruce.com/avoiding-fake-and-manipulated-gemstones-2042960|title=Fake Gemstones|work=The Spruce|access-date=2017-10-20}} 4. ^{{Cite book|url=https://books.google.com/books?id=QhPpEGo_OjkC&pg=PA23&dq=composite+gem&hl=en&sa=X&ved=0ahUKEwiVpJH1mPzXAhVR8mMKHVhXBy4Q6AEIJzAA#v=onepage&q=composite%20gem&f=false|title=Groovy Gems|last=Petersen|first=Christine|date=2010-01-01|publisher=ABDO|isbn=9781616139339|language=en}} 5. ^1 2 {{Cite book|url=https://books.google.com/books?id=WUBWz22wRtEC&pg=PA142&dq=composite+doublet+gemstone&hl=en&sa=X&ved=0ahUKEwjNnbqS9P_WAhVoi1QKHRORDsgQ6AEITDAG#v=onepage&q=composite%20doublet%20gemstone&f=false|title=Jewelry & Gems, the Buying Guide: How to Buy Diamonds, Pearls, Colored Gemstones, Gold & Jewelry with Confidence and Knowledge|last=Matlins|first=Antoinette Leonard|last2=Bonanno|first2=Antonio C.|date=2009|publisher=Gemstone Press|isbn=9780943763712|language=en}} 1 : Gemstones |
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