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2 changes: 1 addition & 1 deletion docs/learn/fundamentals/crystal-systems.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@ sections:
description: 2-fold, 3-fold, 4-fold, 6-fold rotational symmetry
- name: Mirror Planes
description: Reflection symmetry planes
- name: Center of Symmetry
- name: Centre of Symmetry
description: Inversion through a point

- title: The Seven Systems
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2 changes: 1 addition & 1 deletion docs/learn/origin/brazil/tourmaline.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -89,7 +89,7 @@ sections:
subsections:
- title: Watermelon Tourmaline
content: |
- Pink center, green rim
- Pink centre, green rim
- Cut to show colour zones
- Popular collector variety
- Good Brazilian production
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2 changes: 1 addition & 1 deletion docs/learn/phenomena/tenebrescence.yaml
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Expand Up @@ -37,7 +37,7 @@ sections:
content: |
Hackmanite is the chromatic variety of sodalite – Na₈[Al₆Si₆O₂₄](Cl,S)₂ – in which
some Cl⁻ is replaced by the S₂⁻ disulfide radical anion. The sodalite framework
provides cage-like sites (β-cages) that host the color-active sulfur species.
provides cage-like sites (β-cages) that host the colour-active sulfur species.

Kondo & Beaton (2009) described hackmanite from Myanmar and Afghanistan, documenting
the tenebrescent colour change: hackmanite "turns pink to purple when exposed to
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