Check this one by Richard Doering ..
SELECT
SCHEMA_NAME(o.schema_id) AS SchemaName
,OBJECT_NAME(o.object_id) AS TableName
,i.name AS IndexName
,i.type_desc AS IndexType
,CASE WHEN ISNULL(ps.function_id,1) = 1 THEN 'NO' ELSE 'YES' END AS Partitioned
,COALESCE(fg.name ,fgp.name) AS FileGroupName
,p.partition_number AS PartitionNumber
,p.rows AS PartitionRows
,dmv.Avg_Fragmentation_In_Percent
,dmv.Fragment_Count
,dmv.Avg_Fragment_Size_In_Pages
,dmv.Page_Count
,prv_left.value AS PartitionLowerBoundaryValue
,prv_right.value AS PartitionUpperBoundaryValue
,CASE WHEN pf.boundary_value_on_right = 1 THEN 'RIGHT' WHEN pf.boundary_value_on_right = 0 THEN 'LEFT' ELSE 'NONE' END AS PartitionRange
,pf.name AS PartitionFunction
,ds.name AS PartitionScheme
FROM sys.partitions AS p WITH (NOLOCK)
INNER JOIN sys.indexes AS i WITH (NOLOCK)
ON i.object_id = p.object_id
AND i.index_id = p.index_id
INNER JOIN sys.objects AS o WITH (NOLOCK)
ON o.object_id = i.object_id
INNER JOIN sys.dm_db_index_physical_stats (DB_ID(), NULL, NULL , NULL, N'LIMITED') dmv
ON dmv.OBJECT_ID = i.object_id
AND dmv.index_id = i.index_id
AND dmv.partition_number = p.partition_number
LEFT JOIN sys.data_spaces AS ds WITH (NOLOCK)
ON ds.data_space_id = i.data_space_id
LEFT JOIN sys.partition_schemes AS ps WITH (NOLOCK)
ON ps.data_space_id = ds.data_space_id
LEFT JOIN sys.partition_functions AS pf WITH (NOLOCK)
ON pf.function_id = ps.function_id
LEFT JOIN sys.destination_data_spaces AS dds WITH (NOLOCK)
ON dds.partition_scheme_id = ps.data_space_id
AND dds.destination_id = p.partition_number
LEFT JOIN sys.filegroups AS fg WITH (NOLOCK)
ON fg.data_space_id = i.data_space_id
LEFT JOIN sys.filegroups AS fgp WITH (NOLOCK)
ON fgp.data_space_id = dds.data_space_id
LEFT JOIN sys.partition_range_values AS prv_left WITH (NOLOCK)
ON ps.function_id = prv_left.function_id
AND prv_left.boundary_id = p.partition_number - 1
LEFT JOIN sys.partition_range_values AS prv_right WITH (NOLOCK)
ON ps.function_id = prv_right.function_id
AND prv_right.boundary_id = p.partition_number
WHERE
OBJECTPROPERTY(p.object_id, 'ISMSShipped') = 0
ORDER BY
SchemaName
,TableName
,IndexName
,PartitionNumber
--
SQLBuddy