#hauyne — Public Fediverse posts on home.social

Stephen Sekula @[email protected] · 2025-09-25 · 00:09 UTC

The haüyne has my vote in this round. I have a weakness for blue, though the allure of #MartianBlueberries hematite is strong...

The pictures seemed to be missing from the original post, so I attached pics of #hauyne and #hematite to this post.

Mineral Cup: "#MinCup25 Round 3 Match 1: Col…" - Haute Lune

https://mastodon.cooleysekula.net/@Min[email protected]/115261997913666817

#martianblueberries #hauyne #hematite #mincup25

Bill Minarik @silicatefondue · 2025-09-20 · 15:22 UTC

#Tugtupite is our second sodalite-structure (after #Haüyne). Finch et al. (2016) investigated the sources of color from point defects, bonds, and coordination in the #sodalite cage structure.

Tugupite is different, due to the beryllium substitution & also that the sodium atoms (large grey balls in the images) are five-fold coordinated, not four-fold.

Tugupite is #tenebrescent (my word of the day): it changes color in daylight, and this might be useful in window blinds.

#Greenland #MinCup25

#tugtupite #hauyne #sodalite #tenebrescent #greenland #mincup25

Bill Minarik @[email protected] · 2025-09-20 · 15:22 UTC

#Tugtupite is our second sodalite-structure (after #Haüyne). Finch et al. (2016) investigated the sources of color from point defects, bonds, and coordination in the #sodalite cage structure.

Tugupite is different, due to the beryllium substitution & also that the sodium atoms (large grey balls in the images) are five-fold coordinated, not four-fold.

Tugupite is #tenebrescent (my word of the day): it changes color in daylight, and this might be useful in window blinds.

#Greenland #MinCup25

#tugtupite #hauyne #sodalite #tenebrescent #greenland #mincup25

Bill Minarik @[email protected] · 2025-09-20 · 15:22 UTC

#Tugtupite is our second sodalite-structure (after #Haüyne). Finch et al. (2016) investigated the sources of color from point defects, bonds, and coordination in the #sodalite cage structure.

Tugupite is different, due to the beryllium substitution & also that the sodium atoms (large grey balls in the images) are five-fold coordinated, not four-fold.

Tugupite is #tenebrescent (my word of the day): it changes color in daylight, and this might be useful in window blinds.

#Greenland #MinCup25

#tugtupite #hauyne #sodalite #tenebrescent #greenland #mincup25

Bill Minarik @[email protected] · 2025-09-20 · 15:22 UTC

#Tugtupite is our second sodalite-structure (after #Haüyne). Finch et al. (2016) investigated the sources of color from point defects, bonds, and coordination in the #sodalite cage structure.

Tugupite is different, due to the beryllium substitution & also that the sodium atoms (large grey balls in the images) are five-fold coordinated, not four-fold.

Tugupite is #tenebrescent (my word of the day): it changes color in daylight, and this might be useful in window blinds.

#Greenland #MinCup25

#mincup25 #greenland #tenebrescent #sodalite #hauyne #tugtupite

Bill Minarik @[email protected] · 2025-09-20 · 15:22 UTC

#Tugtupite is our second sodalite-structure (after #Haüyne). Finch et al. (2016) investigated the sources of color from point defects, bonds, and coordination in the #sodalite cage structure.

Tugupite is different, due to the beryllium substitution & also that the sodium atoms (large grey balls in the images) are five-fold coordinated, not four-fold.

Tugupite is #tenebrescent (my word of the day): it changes color in daylight, and this might be useful in window blinds.

#Greenland #MinCup25

#tugtupite #hauyne #sodalite #tenebrescent #greenland #mincup25

Bill Minarik @[email protected] · 2025-09-17 · 18:25 UTC

A description of #Haüyne fluorescence at: https://gemologyproject.com/wiki/index.php?title=Hauyne

These samples are found in a quarry near the Laacher See (Eifel Mts, Rhineland-Palatinate, Germany)