Which gem may fade quickly in direct sunlight?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Study for the DCA Gemology Test. Utilize flashcards and multiple-choice questions, each question offering hints and explanations. Prepare effectively for your exam with confidence!

Multiple Choice

Which gem may fade quickly in direct sunlight?

Explanation:
Light-induced color fading is a key factor in gemstone color stability. Kunzite, a pink variety of spodumene colored by manganese, is especially sensitive to light. The color centers that give Kunzite its hue are easily bleached by UV light, so direct sunlight can rapidly fade its pink color. That makes Kunzite the best answer for fading quickly in direct sunlight. The other stones have different stability profiles: opal can be affected by dehydration and handling, aquamarine colors are generally more stable in sunlight, and tanzanite can change with prolonged exposure but not to the same rapid extent as Kunzite.

Light-induced color fading is a key factor in gemstone color stability. Kunzite, a pink variety of spodumene colored by manganese, is especially sensitive to light. The color centers that give Kunzite its hue are easily bleached by UV light, so direct sunlight can rapidly fade its pink color. That makes Kunzite the best answer for fading quickly in direct sunlight. The other stones have different stability profiles: opal can be affected by dehydration and handling, aquamarine colors are generally more stable in sunlight, and tanzanite can change with prolonged exposure but not to the same rapid extent as Kunzite.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy