hardrock
A type of concrete that contains relatively small amounts of aggregate relative to the amount of cement.
Seen in the wild
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#Dio #HolyDiver #1983 #RhinoRecords #RhinoReserve #MusicSky #VinylSky #HardRock #HeavyMetal #NowPlaying #YesterdaysPlays
Banger of the Week: Goose Vargis - Boots on the Ground A hard-hitting #grunge #rock call-to-arms from #Seattle brothers #newmusic #GooseVargis #banger #hardrock wp.me/p9VyLm-6G8
WIZARD This current band, Wizard, looks like they just stepped out of a #D&D campaign. And they play rock music. 😀🎶🔥🎸💙 #hardrock #metal #wizard #fantasy #swordandsorcery
ICYMI – MC5 On Track Short has now officially been published in the UK! Buy from @burningshed or wherever you get your books #mc5 #kickoutthejams #hardrock #garagerock #bluesrock #backintheusa #60srock #70srock
Definitions
A type of concrete that contains relatively small amounts of aggregate relative to the amount of cement.
In this context, you asked us to provide information on (1) which types of royalties the 12 western states assess on hardrock mining operations and (2) trends on imports and exports of hardrock minerals.
“Banger of the Week: Goose Vargis - Boots on the Ground A hard-hitting #grunge #rock call-to-arms from #Seattle brothers #newmusic #GooseVargis #banger #hardrock wp.me/p9VyLm-6G8”
— Bluesky· May 2026“WIZARD This current band, Wizard, looks like they just stepped out of a #D&D campaign. And they play rock music. 😀🎶🔥🎸💙 #hardrock #metal #wizard #fantasy #swordandsorcery”
— Bluesky· May 2026“ICYMI – MC5 On Track Short has now officially been published in the UK! Buy from @burningshed or wherever you get your books #mc5 #kickoutthejams #hardrock #garagerock #bluesrock #backintheusa #60srock #70srock”
— Bluesky· May 2026
Comments
(geology) Solid, nonporous rock.
Reflection coefficients calculated from impedance contrasts between felsic and mafic rocks and other common lithologies in hardrock terranes often exceed 6%, the estimated minimum value required to give strong reflections.
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— Bluesky· May 2026“#Dio #HolyDiver #1983 #RhinoRecords #RhinoReserve #MusicSky #VinylSky #HardRock #HeavyMetal #NowPlaying #YesterdaysPlays”
— Bluesky· May 2026
Comments
(mining) Rock containing ore from which minerals are extracted.
The federal system for "hardrocks," pursuant to the Mining Law of 1872, allows the discovery, location, and development of these minerals without payment to the federal government.
"hardrock" means: Rock containing ore from which minerals are extracted.. This is a fairly neutral word with no inherent risk attached. There is no real cause for parental concern; it is descriptive vocabulary rather than something dangerous. If your child uses it, context will usually make the meaning clear. A brief, curious question about where they heard it is generally enough to know whether to follow up.
"hardrock" means: Rock containing ore from which minerals are extracted.. Register: neutral, standard English, usable in most everyday contexts. A common non-native mistake is to use the word in the wrong register, or to assume one fixed meaning when it is actually polysemous; always check the surrounding register and the audience before producing it yourself. In formal writing, prefer a neutral synonym or a short descriptive phrase, and use this word only when you have heard or read it being used naturally in a comparable context.
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