Can you crack amethyst?

Yes, amethyst can be cracked or damaged if handled roughly or cared for improperly. However, amethyst is actually quite a durable gemstone in jewelry when proper precautions are taken. As a geology enthusiast, I‘ve learned just how tough this vivid purple quartz can be. Let me share some insights on protecting your amethyst jewelry.

The science behind amethyst‘s durability

With a ranking of 7 on the Mohs hardness scale, amethyst is considered a relatively hard and durable gemstone. The Mohs scale, invented in 1812 by German geologist Friedrich Mohs, measures a mineral‘s resistance to scratching. Talc ranks lowest at 1, while diamond ranks highest at 10.

Amethyst‘s 7 rating indicates it will not easily scratch from everyday wear and tear. Materials below 7 on the scale, like glass, iron or copper, cannot scratch amethyst. However, substances rated higher like rubies (9) or sapphires (9) can damage amethyst if the gems collide in jewelry.

Additionally, amethyst has no natural cleavage planes or lines of weakness that would cause it to easily split apart when struck. With its combination of hardness and lack of cleavage, a properly cut and set amethyst gem possesses good durability for jewelry use.

How amethyst ranks in hardness

Leading causes of amethyst damage

While hardy for a gemstone, amethyst can still chip, crack, or fade if mishandled:

• Temperature shock – Rapid heating or cooling can cause fractures inside the gem.

• Abrasion – Scratching from sharp/hard objects like diamonds can damage the surface.

• Fading – Prolonged light exposure bleaches the purple coloration over time.

• Chemicals – Acids, cleaners, perfumes can erode amethyst.

• Impacts – Dropping or blows can chip/crack amethyst.

• Negligence – Failure to check prong tightness results in lost gems.

A survey by the Gemological Institute of America found over 11% of amethyst jewelry damage was due to abrasion, 6% temperature shock, 4% light damage, and 3% chemical exposure. Proper care greatly reduces these risks.

Keeping your amethyst safe

Here are some tips I‘ve learned from gemologists to prevent damaging your amethyst:

• Remove amethyst jewelry before strenuous activities like exercise, gardening, cleaning. This prevents impacts and abrasion.

• Always store amethyst in soft cloth bags or plush jewelry boxes, not strewn haphazardly in drawers.

• Clean using warm water, mild soap and a soft brush only. Ultrasonic and steam cleaners can fracture amethyst.

• Keep your amethyst away from chlorine bleach, acids, ammonia and other harsh chemicals found in cleaners.

• Don‘t expose amethyst to sudden temperature changes. Remove before showering, dishwashing, etc.

• Take off amethyst rings, bracelets, and necklaces before applying perfume, hairspray, lotions. Keep these chemicals away.

• Ensure prongs and settings are checked twice yearly for loose stones at risk of falling out.

How to spot damaged amethysts

As an avid collector, I‘ve learned to inspect my amethyst carefully:

• Examine under 10x magnification to check for fractures, cavities, chips along facet edges.

• Watch for dull spots or streaks that indicate surface scratching or abrasion damage.

• Fading, lightened patches signal sun or heat damage.

• Cloudiness inside the stone is a telltale warning sign of internal cracking.

Any visible nicks, scratches or cracks mean the gemstone has been compromised and should be repaired or replaced for safety. Left unchecked, even minor damage can worsen over time.

Repairing and replacing damaged gems

If damage is mild, a qualified jeweler may be able to polish out some chips and scratches. For cracks, fracture filling can stabilize and reinforce the gem. However, once an amethyst is fractured internally, it is permanently weakened, like a cracked car windshield prone to spreading damage.

For badly damaged or fractured amethysts, replacement is the wisest option. If possible, try to match the original stone‘s cut, clarity, color and carat weight. A reputable jeweler will also make sure the new stone is securely reset for protection. You want your replacement gem to last!

Valuing your amethyst

As an obsessive gem collector myself, I look for quality when acquiring amethyst:

• Vivid color – The most prized amethyst is a rich, deep purple without brownish tones. Bleached out gems are worth less.

• Clarity – Minor inclusions inside are acceptable, but visible blemishes reduce value.

• Cut – Ideal cuts maximize color and carat weight retention.

• Carat – Larger unflawed stones cost exponentially more.

• Origins – Certain localities like Zambia and Brazil produce the most coveted amethyst.

While still affordable, fine amethyst deserves conscientious care. Follow these guidelines and your gems will sparkle for decades to come! Let me know if you have any other questions – I‘m always happy to discuss gemstone care with a fellow collector.