| Alexandrite |
Generally stable to light, heat
& chemicals. Do not boil.Ultrasonic with care (jewellers only). |
Jade (Jadeite & Nephrite) |
Often polished with wax finish.
Other- wise, very tough. Avoid high heat, solvents, acids & strong light. Soak briefly
in ammonia, brush & Water-Pik. |
| Amber |
Easily damaged by heat, pressure,
and chemicals. Wipe or soak in soapy water. Do not ultrasonic. |
Kunzite (Spodumene) |
Do not boil or ultrasonic. Heat
& strong light can change color. Soak in ammonia, rinse & brush. Avoid
hydrofluoric acid. |
| Amethyst |
Avoid strong heat & abrupt
temperature changes. Boiling & ultrasonic should be done with care not to
"shock" stone. Soak in ammonia & brush. |
Lapis Lazuli |
Do not boil or ultrasonic. Often
dyed. Avoid heat, solvents, acids, strong detergents. Clean gently with soapy water. |
| Andalusite |
Ultrasonic OK. Do not boil. |
Malachite |
Do not boil or ultrasonic. Avoid
heat, solvents, acids. Clean gently with soapy water. |
| Apatite |
Heat & strong light can cause
color to change or fade. Do not boil. No ultrasonic. |
Opal |
Very delicate & heat sensitive.
Do not boil or ultrasonic. Avoid all solvents, acids, heat, abrasion. Brush with soapy
water; brush accent gems. |
| Aquamarine (Beryl) |
Do not boil. Ultrasonic
with caution: jewellers should check for inclusions. Acids can cause damage,
especially hydrofluoric. Soak in ammonia, brush. Brush accent gems & Water-Pik with
warm, soapy water. |
Pearls |
Organic; avoid chemicals, hair
spray, perfume, perspiration. Very soft. Do not boil or ultrasonic. Wipe with soft, damp
cloth after wearing. Do not store in dark place. Needs light. |
| Beryl |
Peridot |
May fracture if heat-shocked. Do
not ultrasonic. Boil with care. Damaged by acids. Soak in ammonia & brush clean. |
| Cats Eye (Chrysoberyl) |
Generally stable. Avoid boiling and
ultrasonic. |
Quartz |
Avoid strong heat & abrupt
temperature changes. Boiling & ultrasonic should be done with care not to
"shock" stone. Soak in ammonia & brush. |
| Citrine (Quartz) |
Strong heat (jewellers torch) may
destroy color. Boiling and ultrasonic cleaning best done carefully, by jeweller. Soak in
ammonia, brush, Water-Pik. |
Ruby &
Sapphire (Corundum) |
Boiling and ultrasonic generally
safe. Soak in ammonia & brush. Water-Pik with hot, soapy water. May have glass-filled
cavities that could be dislodged. |
| Coral |
Organic material, soft & often
dyed. Do not boil, ultrasonic or use chemicals. Clean with soapy water. Brush accent
stones & clean with Water-Pik. |
Spinel |
Boiling OK; avoid heat shock. Sonic
cleaning OK; ultrasonic with care. Jewelers torch may fade light colors. Soak, brush
& Water-Pik. |
| Diamond |
Untreated diamonds OK to boil &
ultra- sonic. Soak in ammonia, brush & Water-Pik. Fracture-filled diamonds must be
treated with care. Jewellers torch can remove fillingslet him know if you know
your diamond is filled! |
Tanzanite (Zoisite) |
Do not boil or ultrasonic. Will
fracture if shocked. Damaged by hydrofluoric & hydrochloric acids. Soak in ammonia
& brush, Water-Pik accent stones.. |
| Diopside |
Do not boil or ultrasonic; do not
expose to hydrofluoric acid. Very heat-sensitive. Soak in ammonia, brush. |
Topaz |
Do not boil or ultrasonic.
Fractures if shocked. Soak in ammonia & brush; clean accent stones with Water-Pik. |
| Emerald (Beryl) |
Use extreme care. Usually filled
with oil or resins that might be removed with cleaning. (Fillings can be restored.) Do not
boil or ultrasonic. Rinse, brush & Water-Pik with warm, soapy water. |
Turquoise |
Do not boil or ultrasonic. Attacked
by acids. Cosmetics or perspiration may discolor stone. Many are dyed or
"stabilized" with resins. Brush with ammonia, rinse & dry. |
| Garnet |
Gentle boiling OK if temperature
"shock" avoided. Ultrasonic with care. Sonic OK. Jewelers- avoid hydrofluoric
acid & torch. Soak in ammonia, brush. |
Zircon |
Do not boil; ultrasonic OK. High
heat or strong light could change color. Easily abradedhandle with care. Soak in
ammonia, brush & Water-Pik. |
| Iolite |
Gentle boiling & ultrasonic OK.
Avoid thermal shock. Acids can damage. Soak in ammonia, brush, Water-Pik. |
Note: |
If in doubt, let the us
clean your jewellery. Remember that cleaning might loosen stonescheck carefully. |