Crystopedia
Fossil Healing crystal

Micraster

Yellow

Micraster specimen
Micraster brevis (Lamarck, 1816) MHNT Coniacien Puys (76).jpg · Wikimedia Commons (see file page for author & license)

🦴 Fossil facts

AgeLate Cretaceous, about 94–66 million years ago
Origin & sourcesChalk of southern England (Kent, Sussex), northern France (Normandy) and Denmark (Stevns Klint).
CompositionCalcite test, often filled or replaced by flint

How it forms

Micraster was a heart-shaped urchin that burrowed in chalky seafloor mud. Its gradual change through the chalk layers made it a classic example in studies of evolution.

🌍 Where it's found

  • Type locality
  • Notable source / deposit
  • Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.

✨ Metaphysical & Folklore

These are traditional and folk beliefs from crystal lore. They are not scientific or medical claims – crystals are not a substitute for professional care.

The heart-shaped chalk urchin is linked in collectors' lore to love, steady affection and endurance.

Traditional uses
love, endurance, protection
Chakra
Root Heart
Zodiac
Cancer
Element
Water, Earth

💞 Pairs well with (traditional pairings)

BloodstoneBoth carry the theme of endurance, so together they're thought to reinforce it. TourmalineA natural partner for protection; Tourmaline also adds balance. EmeraldPaired in tradition for love, with Emerald bringing renewal as well. Rose QuartzBoth carry the theme of self-love, so together they're thought to reinforce it. Clear QuartzLifts and clarifies micraster's grounding energy; clear quartz is said to amplify any stone.

Learn more