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How To Recognise Spinel From Sapphire To Naked Eye.

Im Poorna Rajitha From Gem City Of Sri Lanka Rathnapura.

Email - [email protected]

Spinel and sapphire are both beautiful gemstones, but they are different in several key ways. Here’s a comparison across the most important factors:

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1. Composition
• Spinel: Magnesium aluminum oxide (MgAl₂O₄)
• Sapphire: A variety of corundum, aluminum oxide (Al₂O₃)

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2. Hardness (Mohs scale)
• Spinel: 7.5–8
• Sapphire: 9 (second hardest natural gemstone after diamond)

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3. Color Range
• Spinel: Comes in a wide range — red, pink, orange, blue, purple, gray, and even black.
• Sapphire: Most known for blue, but also comes in pink, yellow, green, orange, purple, and colorless (called fancy sapphires). The red variety of corundum is called ruby, not sapphire.

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4. Crystal Structure
• Spinel: Isometric (cubic)
• Sapphire: Trigonal (hexagonal)

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5. Rarity and Value
• Spinel: Historically underappreciated, but high-quality red spinel (sometimes confused with ruby) is rare and gaining value.
• Sapphire: More widely known and generally more expensive, especially in high-quality blue.

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6. Historical Confusion
• Many famous “rubies” in history were actually red spinels, including the famous Black Prince’s Ruby in the British Crown Jewels.

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7. Inclusions and Treatments
• Spinel: Usually untreated, often cleaner in clarity.
• Sapphire: Often heat-treated to enhance color or clarity.



8. Origin
• Spinel: Found in places like Myanmar (Burma), Sri Lanka, and Tanzania.
• Sapphire: Mined in Sri Lanka, Kashmir, Madagascar, Myanmar, and Australia.



Quick Visual Tip
• Spinel and sapphire can look similar, especially in red or blue, but spinel tends to show more brilliance (“sparkle”) due to its cubic structure.



If you’re considering buying one, spinel offers great beauty and durability at a more affordable price compared to sapphire, and it’s becoming more popular in fine jewelry.


Here are some YouTube keywords and keyword phrases you can use to target searches related to spinel vs. sapphire, or to optimize video content on this topic:


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• How to tell spinel from sapphire
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• Spinel refractive index
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• Gemstone identification tools
• Heat treated sapphire vs untreated spinel




• Gemologist explains spinel and sapphire
• Spinel misidentified as ruby
• Famous spinels in history
• Black Prince’s Ruby spinel
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• Sapphire alternatives


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🔷 කිරිංචි සහ සෆායා අතර වෙනස | Spinel vs Sapphire in Sinhala

ඔබ සැරයුම් ගල් වලට ආදරය කරන කෙනෙක්ද? එහෙනම් මේ වීඩියෝව ඔබටයි! 💎

මේ වීඩියෝවේදි අපි බලමු:
• කිරිංචි (Spinel) සහ සෆායා (Sapphire) කියන්නේ කුමක්ද?
• ඒවගේම ඒවායේ වෙනස්කම් — වර්ණය, දෘඪතාවය, වටිනාකම, සහ ප්‍රසිද්ධිය
• බොහෝ දෙනෙක් කිරිංචිය රුබී ලෙස හඳුනාගන්නා හේතුව
• සෆායා වල තිබෙන විශේෂත්වයන්

ඔබ gemstone එකක් තෝරනකොට, මේ වීඩියෝව බලලා තීරණය කරන්න!


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