Crystal
Sard
Sarda
Brown Chalcedony — Trigonal, Mohs 7
Essence
Reddish-brown chalcedony for steady action. It works through the Root chakra (Muladhara), the seat of physical safety, material groundedness, and the body's relationship with earth. Under Mars (Mangal)'s influence, courage and steady action. Reach for it when navigating grounding, vitality.
Anchors
Sourcing
Indian and Brazilian deposits; reddish-brown chalcedony, classical engraving stone.
Classical lineage
Classical Vedic literature does not specifically reference this stone. Modern usage is grounded in mineralogical observation and energetic-tradition practice.
Ritual of care
This stone is water-sensitive — wiping preserves its structural integrity and surface quality
Tuesday is Mangal's day — Martian courage is most accessible
Pairs with