California State Mining and Mineral Museum Park Property - California
The California State Mining and Mineral Museum interprets the state's mineral resources and mining heritage. It is located in Mariposa on the Mariposa County fairgrounds. The big news of 1848 was the discovery of gold in California. This event created international interest and soon a mass immigration of fortune seekers and pioneers trekked their way to pan the streams for gold in the Sierra Nevada foothills. More than a century later, gold and legends of Old West mining continue to fascinate historians. Although this is one of California's newest state parks, the museum houses a collection that was started in 1865 in San Francisco — the official California State Mineral Collection, with over 13,000 minerals, rocks, gems, fossils, and historic artifacts. Recently returned (in 2000) is the popular crystalline gold "Fricot Nugget", weighing 201 troy ounces (6.25 kg) — the largest one found during the Gold Rush.
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https://www.parks.ca.gov/?page_id=588
https://en.wikipedia.org/wiki/California_State_Mining_and_Mineral_Museum
The California State Mining and Mineral Museum interprets the state's mineral resources and mining heritage. It is located in Mariposa on the Mariposa County fairgrounds. The big news of 1848 was the discovery of gold in California. This event created international interest and soon a mass immigration of fortune seekers and pioneers trekked their way to pan the streams for gold in the Sierra Nevada foothills. More than a century later, gold and legends of Old West mining continue to fascinate historians. Although this is one of California's newest state parks, the museum houses a collection that was started in 1865 in San Francisco — the official California State Mineral Collection, with over 13,000 minerals, rocks, gems, fossils, and historic artifacts. Recently returned (in 2000) is the popular crystalline gold "Fricot Nugget", weighing 201 troy ounces (6.25 kg) — the largest one found during the Gold Rush.
California State
Mining and Mineral
Museum
Our Mission
The mission of California State Parks is
to provide for the health, inspiration and
education of the people of California by helping
to preserve the state’s extraordinary biological
diversity, protecting its most valued natural and
cultural resources, and creating opportunities
for high-quality outdoor recreation.
The specimens in today’s
collection include a
gracefully curved sheet
of natural copper,
a platinum nugget, gold,
precious gems, rocks,
and mineral crystals from
California State Parks supports equal access.
Prior to arrival, visitors with disabilities who
need assistance should contact the park at
(209) 742-7625. If you need this publication in an
alternate format, contact interp@parks.ca.gov.
CALIFORNIA STATE PARKS
P.O. Box 942896
Sacramento, CA 94296-0001
For information call: (800) 777-0369
(916) 653-6995, outside the U.S.
711, TTY relay service
www.parks.ca.gov
California State
Mining and Mineral Museum
5005 Fairgrounds Rd., Mariposa, CA 95338
(209) 742-7625
© 2010 California State Parks (Rev. 2017)
every continent on Earth.
T
he California State Mining and Mineral
Museum, situated along Highway 49 in
the historic gold-rush town of Mariposa,
houses, displays, and interprets the official
California State Mineral Collection.
The museum, located at the Mariposa
County fairgrounds, is dedicated to teaching
the visiting public about the importance of
mining and minerals to California’s history,
environment, economy, and future.
The collection began in 1880; since then,
visitors and researchers have been dazzled
by the many exceptional specimens of
California’s gemstones and minerals — such
as gold, silver, copper, and platinum — in
the museum. The remarkable items on
display include original mining artifacts and
historical documents, precious mineral and
gem specimens from all over the world,
minerals that glow in the dark, and even
several “outer space” rocks (meteorites).
News of the 1848 gold discovery brought
about 100,000 would-be millionaires from all
over the world. Thinking that gold lay around
underfoot, some had planned to fill their
pockets and return home wealthy. Many gave
up after realizing that not even a lot of hard
work could make them rich overnight.
California State Mining Bureau
In 1880 State legislators established the
California State Mining Bureau. A vital service
offered by the new agency was classifying
and identifying minerals found anywhere in
California. Before long, the new bureau was
inundated with specimens submitted for
identification from all over the world.
Henry G. Hanks, the first California
State Mineralogist, was hired to examine
and classify specimens submitted to the
Mining Bureau. Hanks was directed to make
his findings available for scientific and
educational purposes.
CALIFORNIA MINING HISTORY
Only small mining operations
preceded California’s 1848
gold discovery in Coloma.
Gems (precious or semiprecious stones) such
as turquoise, garnets,
and even diamonds had
been found in Amador,
Butte, El Dorado, Nevada,
and Trinity counties.
Silver, copper, mercury,
and other minerals had
previously been mined
Mining for minerals
in California.
A Home for the Collection
The State’s initial collection —
1,327 specimens donated by
the California State Geological
Society — was first displayed
in the State Mining Bureau’s
San Francisco offices. Ore
specimens and donations were
constantly added. Between
1880 and 1983, the collection
moved five times. The Ferry
Building on the Embarcadero
housed the collection until
1983 when building renovations
forced yet another move.
Junior Rangers earn their badges.
The Mariposa County Board of Supervisors
requested that the specimens be moved
to the town of Mariposa; in July 1983, the
entire collection was packed and moved to
a temporary location in the old Mariposa
County Jail. The more valuable specimens
were stored in a bank vault in Mariposa.
The collection was finally moved to its new
home at the Mariposa County Fairgrounds
in 1986, and the former Mining Council
Building became the main exhibit area. The
museum was transferred to California State
Parks in 1999. At present, California State
Mining and Mineral Museum is the only
state park without any associated land.
The Collection Today
The museum collection has grown tenfold
since its beginning and holds over 13,000
specimens, with about 350 rotating on display
at any one time. Original historical documents
include a map of John C. Frémont’s Mexican
The Fricot Nugget
The legendary Fricot (free-co) Nugget —
weighing 13.8 pounds — is the largest
remaining intact mass of crystalline gold
dating back to the California gold rush. The
specimen of gold crystallized when hot goldbearing quartz veinlets cooled in softer slate
and schist rock.
This rare specimen was discovered in a
mud pocket deep in the Grit Mine, near the
American River’s middle fork, by William
Russell Davis in August of 1864. In 1865,
Grass
Museo Estatal de
Minería y Minerales
de California
Nuestra Misión
La misión de California State Parks es proporcionar
apoyo para la salud, la inspiración y la educación
de los ciudadanos de California al ayudar a
preservar la extraordinaria diversidad biológica
del estado, proteger sus más valiosos recursos
naturales y culturales, y crear oportunidades para
la recreación al aire libre de alta calidad.
Las muestras de
la colección actual
incluyen una lámina
elegantemente curva de
cobre natural, una pepita
de platino, oro, piedras
California State Parks apoya la igualdad de
acceso. Antes de llegar, los visitantes con
discapacidades que necesiten asistencia
deben comunicarse con el parque llamando
al (209) 742-7625. Si necesita esta publicación
en un formato alternativo, comuníquese con
interp@parks.ca.gov.
CALIFORNIA STATE PARKS
P.O. Box 942896
Sacramento, CA 94296-0001
Para obtener más información, llame al:
(800) 777-0369 o (916) 653-6995, fuera de los
EE. UU. o 711, servicio de teléfono de texto.
www.parks.ca.gov
California State
Mining and Mineral Museum
5005 Fairgrounds Rd., Mariposa, CA 95338
(209) 742-7625
© 2010 California State Parks (Rev. 2017)
preciosas, rocas y cristales
minerales de todos los
continentes de la Tierra.
E
l Museo Estatal de Minería y Minerales
de California, situado junto a la Autopista
49 en el pueblo histórico de la fiebre del
oro, Mariposa, alberga, exhibe e interpreta
la Colección Oficial de Minerales del Estado
de California.
El museo, ubicado en los recintos feriales
del Condado de Mariposa, está dedicado
a educar al público visitante sobre la
importancia de la minería y los minerales
en la historia, ambiente, economía y futuro
de California.
La colección comenzó en 1880, y desde
entonces, visitantes e investigadores se
han deslumbrado en el museo por las
muchas muestras excepcionales de piedras
preciosas y minerales de California, tal
como el oro, la plata, el cobre y el platino.
Los elementos remarcables en exhibición
incluyen artefactos originales de minería
y documentos históricos, minerales
preciosos y muestras de gemas
preciosas de todo el mundo,
minerales que brillan en
la oscuridad e incluso
muchas rocas del “espacio
exterior” (meteoritos).
HISTORIA MINERA
DE CALIFORNIA
Solo pequeñas
operaciones mineras
precedieron al
descubrimiento de oro
en California en 1848, en
Coloma. Gemas (piedras
preciosas o semipreciosas)
tales como la turquesa, el granate e incluso
diamantes se han encontrado en los
condados de Amador, Butte, El Dorado,
Nevada y Trinity. Plata, cobre, mercurio
y otros minerales habían sido extraídos
previamente en California.
Las noticias del descubrimiento del oro en
1848 trajeron a cerca de 100,000 aspirantes
a millonarios de todo el mundo. Con el
pensamiento de que el oro yacía bajo los
pies, algunos habían planeado llenar sus
bolsillos y regresar ricos a sus hogares.
Muchos se rindieron después de darse
cuenta que ni siquiera mucho trabajo duro
los podría hacer rico de la noche a la mañana.
Oficina estatal de minería de California
En 1880, los legisladores estatales
establecieron la Oficina Estatal de Minería
de California. Un servicio vital que ofrecía
la nueva agencia era clasificar e identificar
minerales hallados en cualquier parte
de California. En poco tiempo, la
nueva oficina estaba inundada
con muestras enviadas para
su identificación desde todas
partes del mundo.
Henry G. Hanks, el primer
mineralogista del estado de
California, fue contratado
para examinar y clasificar
muestras enviadas a la
Oficina de Minería. Hanks
recibió la instrucción de que
sus hallazgos estuvieran
disponibles para fines
científicos y educativos.
Extracción de minerales
Exploradores juveniles reciben sus medallas.
Un hogar para la colección
La colección inicial del Estado, 1,327
muestras donadas por la Sociedad
Geológica del Estado de California, se
exhibió primero en las oficinas de la Oficina
Estatal de Minería en San Francisco. Se
agregaron constantemente muestras de
la mena y donaciones. Entre 1880 y 1983,
se mudó la colección cinco veces. El
edificio Ferry Building en el Embarcadero
albergó la colección hasta 1983 cuando
las renovaciones del edificio obligaron a
realizar otra mudanza.
La Junta de Supervisores del Condado
de Mariposa solicitó que las muestras se
trasladaran al pueblo de Mariposa; en julio
de 1983, toda la colección se empacó y se
trasladó a una ubicación temporal en la
antigua cárcel del Condado de Mariposa.
Las muestras más valiosas se almacenaron
en una bóveda bancaria en Mariposa.
La pepita Fricot
La legendaria pepita Fricot (fri-co),
que pesa 13.8 libras, es la masa intacta
restante más grande de oro cristalino
que se remonta a la fiebre del oro
en California. La muestra de oro se
cristalizó cuando las venillas de cuarzo
con oro caliente se enfriaron y pasaron
a ser pizarra y esquisto más suaves.
En agosto de 1864, William Russell
Davis descubrió esta muestra rara en
una cavidad de lodo profunda en la
mina de arena, cerca de la bifurc