Crystal
Black Tourmaline
Krishnashma / Black Tourmaline
Schorl — Trigonal, Mohs 7–7.5
Essence
Anchors protection, grounding, and psychic boundary-setting. It works through the Root chakra (Muladhara), the seat of physical safety, material groundedness, and the body's relationship with earth. Under Saturn (Shani)'s influence, aligns protection from scattered thinking and energetic disturbance; anchors the root to earth. Reach for it when navigating protection, grounding, anxiety.
Anchors
Sourcing
Brazil (Minas Gerais), Pakistan (Skardu), Sri Lanka. Strongly piezoelectric — fine dust may irritate skin; always use polished or tumbled pieces. Not easily adulterated.
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
Water carries accumulated energy away; the flow symbolises continuous release
Saturday is Shani's day — Saturn's discipline and endurance are most focused
Pairs with
The Honest Stone
What we actually know about Black Tourmaline (Schorl)
Every claim on this page is tagged with one of five evidence tiers. We separate what is mineralogically verifiable from what is classical, from what is modern belief, from what we ourselves doubt.
- •Schorl variety of tourmaline (NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄) — iron-dominant endmember.
- •Mohs 7-7.5 — durable.
- •Specific gravity 3.10-3.25.
- •Pyroelectric (generates charge with temperature change) and piezoelectric (with pressure).
Verifiable by mindat.org / GIA / standard mineralogy.
- •Placed at home entryways and four corners as protective stone (modern Vastu adoption).
- •Worn as bracelet on left wrist for energetic boundary.
- •Used to neutralise EMF in workspaces (modern claim, partial mineralogical basis).
Held in Jyotish, Reiki, or Western metaphysical lineages — not from primary classical text.
- •EMF protection / Wi-Fi shielding — partial mineralogical basis (pyroelectric effect) but no peer-reviewed evidence of biological protection.
- •Root chakra grounding — consistent across modern crystal-healing literature.
Popularised post-1980s. No classical or scientific support.
- •Wi-Fi or 5G health protection — no scientific evidence; we do not endorse this claim.
Siyara explicitly flags doubt about this claim.
What we do NOT claim
- — We do not claim black tourmaline blocks radiation in any medically meaningful way.
Authenticity & Fakes
How to tell real from imitation
Real specimens look like
Visible parallel striations along crystal length; cool to touch; chips with conchoidal fracture; very dark with no inclusions.
Common fakes
Black obsidian
Volcanic glass — VALID protective stone but different mineralogy and properties.
Tell-tale sign · Glass-smooth surface (no striations); lower hardness (Mohs 5.5); shell-shaped fracture.
Black onyx (dyed agate)
Banded chalcedony dyed black.
Tell-tale sign · No striations; uniform colour; sometimes traces of natural banding visible.
Glass / hematite imitation
Pressed or moulded glass, sometimes hematite-coated.
Tell-tale sign · Warm to touch (glass); too uniform; no piezoelectric response.
30-second home test
Striation test — natural black tourmaline always shows lengthwise grooves visible to the eye or under loupe.
When NOT to use
Times this stone is not the right choice
- ·If the wearer becomes overly closed, withdrawn, or numb, reduce wearing time.
- ·Generally safe for all stages including pregnancy and children. Rare contraindication.
Pricing & Sourcing
What this stone should cost in India
Coming Soon
Pricing tables go live when our shop opens. We are finalising sourcing, packaging, GST registration, and required compliance disclosures before listing a single price.
Sourcing transparency
Origins · Brazil, Pakistan, Madagascar, Afghanistan, Namibia
Traceability · wholesaler attested
Schorl is abundant — one of the few crystals with truly low-impact sourcing. Industrial-scale extraction is rare; mostly artisanal.