Vote for your favorite mineral in #MinCup26! - Pyromorphite vs. Graphite
Linked by archaic translations and mineralogical misunderstandings, the quarterfinals are ending in hexagons with vivid pyromorphite vs writeable graphite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Lapilli-tuff

A rock classification type
This page is currently not sponsored. Click here to sponsor this page.
07941830017272360534360.jpg
Lapilli-tuff

Homolka Hill, Příšov, Plzeň-North District, Plzeň Region, Czech Republic
01787840017797033723478.jpg
Lapilli-tuff

Custer County, Idaho, USA
07941830017272360534360.jpg
Lapilli-tuff

Homolka Hill, Příšov, Plzeň-North District, Plzeň Region, Czech Republic
01787840017797033723478.jpg
Lapilli-tuff

Custer County, Idaho, USA
07941830017272360534360.jpg
Lapilli-tuff

Homolka Hill, Příšov, Plzeň-North District, Plzeň Region, Czech Republic
01787840017797033723478.jpg
Lapilli-tuff

Custer County, Idaho, USA
Hide all sections | Show all sections

About Lapilli-tuffHide

A pyroclastic rock (clastic Or fragmentary volcanic rock) in which volcanic bombs and/or blocks (particles >32mm) comprise < 25%, and both lapilli (particles from 2 - 64mm) and volcanic ash (particles <2mm) comprise < 75%.

See also tuffite, tuff breccia and lapillistone.


Unique IdentifiersHide

Mindat ID:
48585
Long-form identifier:
mindat:1:1:48585:4

Classification of Lapilli-tuffHide

TRI__54fbb64b877256a2a8feca1e7b7922f4.png


Classification of polymodal pyroclastic rocks (after Fisher, 1966)


Sub-divisions of Lapilli-tuffHide

Synonyms of Lapilli-tuffHide

Internet Links for Lapilli-tuffHide

References for Lapilli-tuffHide

Quick NavTopAbout Lapilli-tuffUnique IdentifiersClassification Sub-divisions SynonymsInternet Links References
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 28, 2026 21:27:04 Page updated: May 25, 2026 10:02:53
Go to top of page