100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
GIA COLORED STONES ASSIGNMENT 6 QUESTIONS AND ANSWERS $9.00   Add to cart

Exam (elaborations)

GIA COLORED STONES ASSIGNMENT 6 QUESTIONS AND ANSWERS

 10 views  0 purchase
  • Course
  • GIA COLORED STONE
  • Institution
  • GIA COLORED STONE

GIA COLORED STONES ASSIGNMENT 6 QUESTIONS AND ANSWERS

Preview 4 out of 39  pages

  • September 26, 2024
  • 39
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • gia
  • GIA COLORED STONE
  • GIA COLORED STONE
avatar-seller
selftest
Name: Score:


45 Multiple choice questions

Definition 1 of 45
What is an organic gem that is commonly heat-treated?

amber

red

jadeite

opal

Definition 2 of 45
Commonly irradiated gems include,

topaz, tourmaline, cultured pearl

colorless impregnation

irradiated, heat, light

synthetic corundum

Definition 3 of 45
An oxygen-rich environment that surrounds a gem during heat treatment, causing it to absorb
oxygen.

absence of appropriate enzymes

reducing environment


oxidizing environment

copi-coated vesicles

,Definition 4 of 45
Treatments that improve gem appearance and quality increase the supply of...

titanium oxide and iron oxide


commercially important gems

treatment


commonly dyed gems

Definition 5 of 45
Exposing a gem to radiation to change or improve its color.

pasteurization

ionization

filtration


irradiation

Definition 6 of 45
Altering a gem's appearance by applying backings, coatings, or coloring agents like paint.

spallation

heat treatment


fracture filling

surface modification

Definition 7 of 45
Treaters use sugar treatment to enhance...

emeralds


topaz

opal

amber

,Definition 8 of 45
Almost all ______________ on the market today are fracture filled.

diamonds


rubies

emeralds

sapphires

Definition 9 of 45
For effective clarity enhancement, the material used to fill a gem's fractures must have nearly
the same...

hardness as the gem.

density as the gem.

refractive index as the gem.


color as the gem.

Definition 10 of 45
Quartz or topaz with a thin layer of gold deposited on the surface is known as...

lemon


madeira

titanium oxide

aqua aura

Definition 11 of 45
A chemical that treaters mix with some resins to cause them to solidify.

resin

polymer

hardener

quench crackling

, Definition 12 of 45
Jadeite is often...

irradiated, heat, light


irradiated.

bleached and polymer impregnated

surface-diffusion treated.

Definition 13 of 45
Soaking an opal in a hot sugar solution and then in sulfuric acid to darken it and bring out its
play-of-color.

irradiation

heat treatment

smoke treatment


sugar treatment

Definition 14 of 45
Which of these is considered a gem treatment, cutting, polishing, or fracture filling?

fracture filling

laser drilling


lattice diffusion

heat treatment

Definition 15 of 45
Corundum, tanzanite, zircon, topaz, aquamarine, and amber.

disclosed


gems that are commonly heat treated

bleaching

commonly dyed gems

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller selftest. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $9.00. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79223 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$9.00
  • (0)
  Add to cart