are these mirabelle plums ?

are these mirabelle plums ?

Observation - are these mirabelle plums ? - UK and Ireland. Description: a very old fruit tree in the lawns of the estate of council flats where i live . apparently the land used to be smallholdings this could have been one of their trees ? . i saw it blossom in the spring i thought it was cherry . i saw the green fr

a very old fruit tree
in the lawns of the estate of council flats
where i live
.
apparently the land used to be smallholdings
this could have been one of their trees ?
.
i saw it blossom in the spring
i thought it was cherry
.
i saw the green fruit growing
i thought it was cherry
.
i found the fruit ripened
i was amazed
i thought it looked like
an apricot cherry plum ?
.
i am trying to learn about
cherries and plums
.
i only recently learned about
.
mirabelle plum
prunus domestica syriaca
http://en.wikipedia.org/wiki/Mirabelle_plum
.
and
.
myrobalan plum
cherry plum
prunus cersifera
http://en.wikipedia.org/wiki/Cherry_plum
.
.