What does novaculite mean?
Novaculite is a hard, fine-grained metamorphic rock with the unusual property that it can be shaped or honed to a precise cutting edge. For this reason, suitable deposits were historically quarried to make whetstones, sharpening tools and, in some periods, specialized blades. The term is chiefly encountered in geology, archaeology and the history of toolmaking, rather than in ordinary conversation. Novaculite is not simply a generic name for any sharpening stone: it identifies a particular kind of rock, although the distinction is not always important to a user. Historically significant examples include the fine novaculite stones found in the Wicklow Mountains of Ireland. The word is also worth remembering because it links the geology of a metamorphic rock with a practical human use, turning an ordinary-looking stone into an instrument capable of restoring a blade's edge.
nounA hard, fine-grained metamorphic rock capable of taking a sharp edge, traditionally quarried and dressed for use as a whetstone or sharpening stone.
- A hard, fine-grained metamorphic rock used to make sharpening stones and other tools requiring a keen edge.
"The blades were honed to a fine edge on blocks of novaculite brought down from the quarries."
"Novaculite deposits have supplied material for whetstones for centuries."
"The archaeologist identified a fragment of the blade as novaculite, a stone commonly used for sharpening cutting tools."
Plural novaculites is used when referring to distinct pieces, types, deposits or sources of the stone.
"The collection contains novaculites from several historic quarry sites."
A metamorphic rock with the cutting reputation of a razor: novaculite was once fashioned into legendary sharpening stones.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does novaculite come from?
The word comes through French novaculite from Latin novaculum, meaning “razor,” a name that reflects the stone's ability to produce a sharp edge. Latin novaculum is generally connected with novus, “new,” from the same Indo-European root represented in English by new, novel and novelty. The English geological term was adopted during the early nineteenth century as quarrying and use of novaculite for sharpening tools became more widely documented.
Related word forms
How novaculite is actually used
Novaculite is a specialized geological and archaeological term rather than a general synonym for every whetstone. It refers primarily to the fine-grained rock capable of producing a sharp, smooth edge, although not every sharpening stone is novaculite.
Easily confused with novaculite
Novaculite is a metamorphic rock valued for its ability to take a sharp edge, whereas obsidian is volcanic glass valued especially for its glossy surface and conchoidal fracture.