Strong's #8068: shamiyr (pronounced shaw-meer')

from 8104 in the original sense of pricking; a thorn; also (from its keenness for scratching) a gem, probably the diamond:--adamant (stone), brier, diamond.

Brown-Driver-Briggs Hebrew Lexicon:

ׁ

shâmı̂yr

1) thorn(s), adamant, flint

1a) thorns, thorn-bushes

1b) adamant (as sharp)

1c) a sharp stone, flint

1c1) perhaps a diamond

Part of Speech: noun masculine

Relation: from H8104 in the original sense of pricking

Usage:

This word is used 11 times:

 

Isaiah 5:6: "nor digged; but there shall come up briers and thorns: I will also command the clouds"
Isaiah 7:23: "at a thousand silverlings, it shall even be for briers and thorns."
Isaiah 7:24: "all the land shall become briers and thorns."
Isaiah 7:25: "come thither the fear of briers and thorns: but it shall be for the sending forth of oxen,"
Isaiah 9:18: "burneth as the fire: it shall devour the briers and thorns, and shall kindle in the thickets of the forest,"
Isaiah 10:17: "and it shall burn and devour his thorns and his briers in one day;"
Isaiah 27:4: "is not in me: who would set the briers and thorns against me in battle? I would go through them, I would burn"
Isaiah 32:13: "of my people shall come up thorns and briers; yea, upon all the houses"
Jeremiah 17:1: "with a pen of iron, and with the point of a diamond: it is graven upon the table of their heart,"
Ezekiel 3:9: " As an adamant harder than flint have I made thy forehead: fear them not,"
Zechariah 7:12: "Yea, they made their hearts as an adamant stone, lest they should hear the law, and the words"