gemOrganic (Biogenic)

Red Coral

Vivid red gem formed from the skeleton of marine coral polyps. Mars's stone in Vedic astrology — primary recommendation for Aries (Mesh) and Scorpio (Vrishchik) Rashi.

Hardness: 3–4 Mohs

Quick Facts

Key properties and characteristics

Category

gem

Family

Organic (Biogenic)

Colors

Hardness

3–4 Mohs

Luster

vitreous to dull

Transparency

opaque

Found In

Italy (Sciacca, Sardinia), Tunisia, Algeria

Ruling Planet

Mars, Mangal

Stone DNA

Property breakdown

Hardness
Mohs scale: 4
4.0/10
Durability
Resistance to wear
4.4/10
Luster
vitreous to dull
5.0/10
Rarity
Common
2.0/10
Density
2.7 g/cm³
5.4/10
Energy Affinity
Metaphysical resonance
3.5/10

Scores normalized to 10-point scale for comparison

Color Spectrum

Natural color variations

red
deep red
pink-red
ox-blood
salmon
reddeep redpink-redox-bloodsalmon

Origin Highlights

Where this stone is found

🌍
Italy (Sciacca, Sardinia)Primary
🌍
Tunisia
🌍
Algeria
🌍
Japan (Pacific)
🌍
Taiwan

+1 more locations

Crystal Structure

Molecular arrangement

Interlocking Crystalline

Multiple crystals fused together in matrix

GraniteMarbleGneissQuartzite

Geology Deep Dive

Formation & composition

Formation

Biological — secreted by Corallium polyps over decades on the seabed

🌋

Volcanic / Plutonic

5-30 km below surface

Mineral Composition

Calcium carbonate (calcite) + magnesium carbonate + organic matter
Formation Timeline: Thousands to millions of years

Rashi & Planetary Match

Vedic astrology compatibility

Rashi Compatibility

mesh-rashi-stone(mesh-rashi-stone)
vrishchik-rashi-stone(vrishchik-rashi-stone)
singh-rashi-stone

Planetary Alignment

Mangal(Mars)Primary
Mangal(Mangal)
💎
Birth Month: Not a traditional birthstone

Uses by Industry

Click to explore similar stones

3 industry applicationsClick any to see related stones

Commonly Confused With

How to tell them apart

🆚
Dyed bamboo coral (lighter, porous, dye bleeds on alcohol swab)vs Red Coral

Similar appearance

🆚
Glass / plastic imitations (no temperature feel, perfectly uniform)vs Red Coral

Similar appearance

🆚
Reconstituted coral (visible pressed-grain texture)vs Red Coral

Similar appearance

Always verify with hardness test or expert examination

Formation & Geology

Red Coral forms through geological processes over millions of years. The unique conditions of temperature and pressure create its distinctive characteristics and crystal structure.

Understanding the geological origins helps appreciate the rarity and natural beauty of this stone.

Uses & Applications

Spiritual & Healing

Traditional Vedic astrology pairs Red Coral (Moonga) with Mars, the planet of energy and action. Worn on the ring finger of the right hand, set in gold or copper, on a Tuesday during Shukla Paksha, it is believed to strengthen weak Mars in a birth chart, build courage, support recovery from blood-related conditions, and offer protection — especially for those born under Aries (Mesh) or Scorpio (Vrishchik) Rashi.

Recommended for

mesh-rashi-stone, vrishchik-rashi-stone Rashi

Affirmations

"I am brave. I am steady. I am protected."

"My energy is grounded in the earth's fire."

Rituals & Practices

  • Cleanse the coral in raw cow's milk on a Tuesday morning before first wear.
  • Recite the Mars mantra 108 times: ॐ क्रां क्रीं क्रौं सः भौमाय नमः

The information provided is for educational purposes only and not intended as medical advice. Consult a qualified professional for health-related questions.

More Organic (Biogenic) Stones

Explore similar stones in this category

Make it yours

Is Red Coral your stone?

RashiRocks App

Open Red Coral / Moonga on your phone

Scan the guide, save it to your profile, and use the app for stone scans, wearing reminders, and Rashi-aware jewelry ideas.

No Data
No Images

Stone data enriched using AI with gemology and Vedic astrology sources. Always verify with certified experts for important decisions.