pyrophyllite
noun
py·ro·phyl·lite
ˌpī-rō-ˈfi-ˌlīt 
pī-ˈrä-fə-ˌlīt
pī-ˈrä-fə-ˌlīt
: a soft usually white or greenish mineral that is a hydrous aluminum silicate, resembles talc, occurs in a foliated form or in compact masses, and is used especially in ceramic wares
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Read More: How Viking and Germanic DNA Spread Through the Iron Age Migrations
Similarities Among Viking Solar Compasses
The researchers compared the pyrophyllite disks with other artifacts that have been identified as navigational instruments used by Vikings.
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Jack Knudson, Discover Magazine, 13 Jan. 2025
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Jack Knudson, Discover Magazine, 13 Jan. 2025
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“Pyrophyllite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pyrophyllite. Accessed 30 Oct. 2025.
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